import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;

public class Main {

    private static Scanner sc;

    public static void main(String[] args) {
        Main instance = new Main();
        sc = instance.new Scanner();
        instance.solve();
    }

    private void solve() {
        try {
            String S = sc.next();
            String T = sc.next();
            int l = T.length();
            int cc = 0;
            for (int i = 0; i < S.length() - l + 1; i++) {
            	int c = 0;
            	for (int j = 0; j < l; j++) {
            		if (S.charAt(i + j) == T.charAt(j)) {
            			c++;
            		}
            	}
            	if (c > cc) {
            		cc = c;
            	}
            }
            System.out.println(l - cc);
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    private class Scanner {
        String[] s;
        int i;
        BufferedReader br;
        String regex = " ";

        public Scanner() {
            s = new String[0];
            i = 0;
            br = new BufferedReader(new InputStreamReader(System.in));
        }

        @Override
        protected void finalize() throws Throwable {
            try {
                super.finalize();
            } finally {
                destruction();
            }
        }

        private void destruction() throws IOException {
            if (br != null) br.close();
        }

        public String next() throws IOException {
            if (i < s.length) return s[i++];
            String st = br.readLine();
            while (st == "") st = br.readLine();
            s = st.split(regex, 0);
            i = 0;
            return s[i++];
        }

        public int nextInt() throws NumberFormatException, IOException {
            return Integer.parseInt(next());
        }

        public Long nextLong() throws NumberFormatException, IOException {
            return Long.parseLong(next());
        }

        public Double nextDouble() throws NumberFormatException, IOException {
            return Double.parseDouble(next());
        }
    }
} import java.io.BufferedReader; BufferedReader java.io import java.io.IOException; IOException java.io import java.io.InputStreamReader; InputStreamReader java.io public class Main {

    private static Scanner sc;

    public static void main(String[] args) {
        Main instance = new Main();
        sc = instance.new Scanner();
        instance.solve();
    }

    private void solve() {
        try {
            String S = sc.next();
            String T = sc.next();
            int l = T.length();
            int cc = 0;
            for (int i = 0; i < S.length() - l + 1; i++) {
            	int c = 0;
            	for (int j = 0; j < l; j++) {
            		if (S.charAt(i + j) == T.charAt(j)) {
            			c++;
            		}
            	}
            	if (c > cc) {
            		cc = c;
            	}
            }
            System.out.println(l - cc);
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    private class Scanner {
        String[] s;
        int i;
        BufferedReader br;
        String regex = " ";

        public Scanner() {
            s = new String[0];
            i = 0;
            br = new BufferedReader(new InputStreamReader(System.in));
        }

        @Override
        protected void finalize() throws Throwable {
            try {
                super.finalize();
            } finally {
                destruction();
            }
        }

        private void destruction() throws IOException {
            if (br != null) br.close();
        }

        public String next() throws IOException {
            if (i < s.length) return s[i++];
            String st = br.readLine();
            while (st == "") st = br.readLine();
            s = st.split(regex, 0);
            i = 0;
            return s[i++];
        }

        public int nextInt() throws NumberFormatException, IOException {
            return Integer.parseInt(next());
        }

        public Long nextLong() throws NumberFormatException, IOException {
            return Long.parseLong(next());
        }

        public Double nextDouble() throws NumberFormatException, IOException {
            return Double.parseDouble(next());
        }
    }
} Main private static Scanner sc; sc public static void main(String[] args) {
        Main instance = new Main();
        sc = instance.new Scanner();
        instance.solve();
    } main {
        Main instance = new Main();
        sc = instance.new Scanner();
        instance.solve();
    } Main instance = new Main(); instance new Main() sc = instance.new Scanner() sc instance.new Scanner() instance instance instance.solve() instance.solve instance String[] args args private void solve() {
        try {
            String S = sc.next();
            String T = sc.next();
            int l = T.length();
            int cc = 0;
            for (int i = 0; i < S.length() - l + 1; i++) {
            	int c = 0;
            	for (int j = 0; j < l; j++) {
            		if (S.charAt(i + j) == T.charAt(j)) {
            			c++;
            		}
            	}
            	if (c > cc) {
            		cc = c;
            	}
            }
            System.out.println(l - cc);
        } catch (Exception e) {
            e.printStackTrace();
        }
    } solve {
        try {
            String S = sc.next();
            String T = sc.next();
            int l = T.length();
            int cc = 0;
            for (int i = 0; i < S.length() - l + 1; i++) {
            	int c = 0;
            	for (int j = 0; j < l; j++) {
            		if (S.charAt(i + j) == T.charAt(j)) {
            			c++;
            		}
            	}
            	if (c > cc) {
            		cc = c;
            	}
            }
            System.out.println(l - cc);
        } catch (Exception e) {
            e.printStackTrace();
        }
    } try {
            String S = sc.next();
            String T = sc.next();
            int l = T.length();
            int cc = 0;
            for (int i = 0; i < S.length() - l + 1; i++) {
            	int c = 0;
            	for (int j = 0; j < l; j++) {
            		if (S.charAt(i + j) == T.charAt(j)) {
            			c++;
            		}
            	}
            	if (c > cc) {
            		cc = c;
            	}
            }
            System.out.println(l - cc);
        } catch (Exception e) {
            e.printStackTrace();
        } catch (Exception e) {
            e.printStackTrace();
        } Exception e {
            e.printStackTrace();
        } e.printStackTrace() e.printStackTrace e {
            String S = sc.next();
            String T = sc.next();
            int l = T.length();
            int cc = 0;
            for (int i = 0; i < S.length() - l + 1; i++) {
            	int c = 0;
            	for (int j = 0; j < l; j++) {
            		if (S.charAt(i + j) == T.charAt(j)) {
            			c++;
            		}
            	}
            	if (c > cc) {
            		cc = c;
            	}
            }
            System.out.println(l - cc);
        } String S = sc.next(); S sc.next() sc.next sc String T = sc.next(); T sc.next() sc.next sc int l = T.length(); l T.length() T.length T int cc = 0; cc 0 for (int i = 0; i < S.length() - l + 1; i++) {
            	int c = 0;
            	for (int j = 0; j < l; j++) {
            		if (S.charAt(i + j) == T.charAt(j)) {
            			c++;
            		}
            	}
            	if (c > cc) {
            		cc = c;
            	}
            } int i = 0; int i = 0; i 0 i < S.length() - l + 1 i S.length() - l + 1 S.length() - l S.length() S.length S l 1 i++ i++ i {
            	int c = 0;
            	for (int j = 0; j < l; j++) {
            		if (S.charAt(i + j) == T.charAt(j)) {
            			c++;
            		}
            	}
            	if (c > cc) {
            		cc = c;
            	}
            } {
            	int c = 0;
            	for (int j = 0; j < l; j++) {
            		if (S.charAt(i + j) == T.charAt(j)) {
            			c++;
            		}
            	}
            	if (c > cc) {
            		cc = c;
            	}
            } int c = 0; c 0 for (int j = 0; j < l; j++) {
            		if (S.charAt(i + j) == T.charAt(j)) {
            			c++;
            		}
            	} int j = 0; int j = 0; j 0 j < l j l j++ j++ j {
            		if (S.charAt(i + j) == T.charAt(j)) {
            			c++;
            		}
            	} {
            		if (S.charAt(i + j) == T.charAt(j)) {
            			c++;
            		}
            	} if (S.charAt(i + j) == T.charAt(j)) {
            			c++;
            		} S.charAt(i + j) == T.charAt(j) S.charAt(i + j) S.charAt S i + j i j T.charAt(j) T.charAt T j {
            			c++;
            		} c++ c if (c > cc) {
            		cc = c;
            	} c > cc c cc {
            		cc = c;
            	} cc = c cc c System.out.println(l - cc) System.out.println System.out System System.out l - cc l cc private class Scanner {
        String[] s;
        int i;
        BufferedReader br;
        String regex = " ";

        public Scanner() {
            s = new String[0];
            i = 0;
            br = new BufferedReader(new InputStreamReader(System.in));
        }

        @Override
        protected void finalize() throws Throwable {
            try {
                super.finalize();
            } finally {
                destruction();
            }
        }

        private void destruction() throws IOException {
            if (br != null) br.close();
        }

        public String next() throws IOException {
            if (i < s.length) return s[i++];
            String st = br.readLine();
            while (st == "") st = br.readLine();
            s = st.split(regex, 0);
            i = 0;
            return s[i++];
        }

        public int nextInt() throws NumberFormatException, IOException {
            return Integer.parseInt(next());
        }

        public Long nextLong() throws NumberFormatException, IOException {
            return Long.parseLong(next());
        }

        public Double nextDouble() throws NumberFormatException, IOException {
            return Double.parseDouble(next());
        }
    } Scanner String[] s; s int i; i BufferedReader br; br String regex = " "; regex " " public Scanner() {
            s = new String[0];
            i = 0;
            br = new BufferedReader(new InputStreamReader(System.in));
        } Scanner {
            s = new String[0];
            i = 0;
            br = new BufferedReader(new InputStreamReader(System.in));
        } s = new String[0] s new String[0] 0 i = 0 i 0 br = new BufferedReader(new InputStreamReader(System.in)) br new BufferedReader(new InputStreamReader(System.in)) @Override
        protected void finalize() throws Throwable {
            try {
                super.finalize();
            } finally {
                destruction();
            }
        } finalize {
            try {
                super.finalize();
            } finally {
                destruction();
            }
        } try {
                super.finalize();
            } finally {
                destruction();
            } {
                destruction();
            } destruction() destruction {
                super.finalize();
            } super.finalize() super.finalize super private void destruction() throws IOException {
            if (br != null) br.close();
        } destruction {
            if (br != null) br.close();
        } if (br != null) br.close(); br != null br null br.close() br.close br public String next() throws IOException {
            if (i < s.length) return s[i++];
            String st = br.readLine();
            while (st == "") st = br.readLine();
            s = st.split(regex, 0);
            i = 0;
            return s[i++];
        } next {
            if (i < s.length) return s[i++];
            String st = br.readLine();
            while (st == "") st = br.readLine();
            s = st.split(regex, 0);
            i = 0;
            return s[i++];
        } if (i < s.length) return s[i++]; i < s.length i s.length s s.length return s[i++]; s[i++] s i++ i String st = br.readLine(); st br.readLine() br.readLine br while (st == "") st = br.readLine(); st == "" st "" st = br.readLine() st br.readLine() br.readLine br s = st.split(regex, 0) s st.split(regex, 0) st.split st regex 0 i = 0 i 0 return s[i++]; s[i++] s i++ i public int nextInt() throws NumberFormatException, IOException {
            return Integer.parseInt(next());
        } nextInt {
            return Integer.parseInt(next());
        } return Integer.parseInt(next()); Integer.parseInt(next()) Integer.parseInt Integer next() next public Long nextLong() throws NumberFormatException, IOException {
            return Long.parseLong(next());
        } nextLong {
            return Long.parseLong(next());
        } return Long.parseLong(next()); Long.parseLong(next()) Long.parseLong Long next() next public Double nextDouble() throws NumberFormatException, IOException {
            return Double.parseDouble(next());
        } nextDouble {
            return Double.parseDouble(next());
        } return Double.parseDouble(next()); Double.parseDouble(next()) Double.parseDouble Double next() next public class Main {

    private static Scanner sc;

    public static void main(String[] args) {
        Main instance = new Main();
        sc = instance.new Scanner();
        instance.solve();
    }

    private void solve() {
        try {
            String S = sc.next();
            String T = sc.next();
            int l = T.length();
            int cc = 0;
            for (int i = 0; i < S.length() - l + 1; i++) {
            	int c = 0;
            	for (int j = 0; j < l; j++) {
            		if (S.charAt(i + j) == T.charAt(j)) {
            			c++;
            		}
            	}
            	if (c > cc) {
            		cc = c;
            	}
            }
            System.out.println(l - cc);
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    private class Scanner {
        String[] s;
        int i;
        BufferedReader br;
        String regex = " ";

        public Scanner() {
            s = new String[0];
            i = 0;
            br = new BufferedReader(new InputStreamReader(System.in));
        }

        @Override
        protected void finalize() throws Throwable {
            try {
                super.finalize();
            } finally {
                destruction();
            }
        }

        private void destruction() throws IOException {
            if (br != null) br.close();
        }

        public String next() throws IOException {
            if (i < s.length) return s[i++];
            String st = br.readLine();
            while (st == "") st = br.readLine();
            s = st.split(regex, 0);
            i = 0;
            return s[i++];
        }

        public int nextInt() throws NumberFormatException, IOException {
            return Integer.parseInt(next());
        }

        public Long nextLong() throws NumberFormatException, IOException {
            return Long.parseLong(next());
        }

        public Double nextDouble() throws NumberFormatException, IOException {
            return Double.parseDouble(next());
        }
    }
} public class Main {

    private static Scanner sc;

    public static void main(String[] args) {
        Main instance = new Main();
        sc = instance.new Scanner();
        instance.solve();
    }

    private void solve() {
        try {
            String S = sc.next();
            String T = sc.next();
            int l = T.length();
            int cc = 0;
            for (int i = 0; i < S.length() - l + 1; i++) {
            	int c = 0;
            	for (int j = 0; j < l; j++) {
            		if (S.charAt(i + j) == T.charAt(j)) {
            			c++;
            		}
            	}
            	if (c > cc) {
            		cc = c;
            	}
            }
            System.out.println(l - cc);
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    private class Scanner {
        String[] s;
        int i;
        BufferedReader br;
        String regex = " ";

        public Scanner() {
            s = new String[0];
            i = 0;
            br = new BufferedReader(new InputStreamReader(System.in));
        }

        @Override
        protected void finalize() throws Throwable {
            try {
                super.finalize();
            } finally {
                destruction();
            }
        }

        private void destruction() throws IOException {
            if (br != null) br.close();
        }

        public String next() throws IOException {
            if (i < s.length) return s[i++];
            String st = br.readLine();
            while (st == "") st = br.readLine();
            s = st.split(regex, 0);
            i = 0;
            return s[i++];
        }

        public int nextInt() throws NumberFormatException, IOException {
            return Integer.parseInt(next());
        }

        public Long nextLong() throws NumberFormatException, IOException {
            return Long.parseLong(next());
        }

        public Double nextDouble() throws NumberFormatException, IOException {
            return Double.parseDouble(next());
        }
    }
} Main
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;

public class Main {

    private static Scanner sc;

    public static void main(String[] args) {
        Main instance = new Main();
        sc = instance.new Scanner();
        instance.solve();
    }

    private void solve() {
        try {
            String S = sc.next();
            String T = sc.next();
            int l = T.length();
            int cc = 0;
            for (int i = 0; i < S.length() - l + 1; i++) {
            	int c = 0;
            	for (int j = 0; j < l; j++) {
            		if (S.charAt(i + j) == T.charAt(j)) {
            			c++;
            		}
            	}
            	if (c > cc) {
            		cc = c;
            	}
            }
            System.out.println(l - cc);
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    private class Scanner {
        String[] s;
        int i;
        BufferedReader br;
        String regex = " ";

        public Scanner() {
            s = new String[0];
            i = 0;
            br = new BufferedReader(new InputStreamReader(System.in));
        }

        @Override
        protected void finalize() throws Throwable {
            try {
                super.finalize();
            } finally {
                destruction();
            }
        }

        private void destruction() throws IOException {
            if (br != null) br.close();
        }

        public String next() throws IOException {
            if (i < s.length) return s[i++];
            String st = br.readLine();
            while (st == "") st = br.readLine();
            s = st.split(regex, 0);
            i = 0;
            return s[i++];
        }

        public int nextInt() throws NumberFormatException, IOException {
            return Integer.parseInt(next());
        }

        public Long nextLong() throws NumberFormatException, IOException {
            return Long.parseLong(next());
        }

        public Double nextDouble() throws NumberFormatException, IOException {
            return Double.parseDouble(next());
        }
    }
}