import java.io.OutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.PrintWriter;
import java.util.Scanner;

/**
 * Built using CHelper plug-in
 * Actual solution is at the top
 */
public class Main {
    public static void main(String[] args) {
        InputStream inputStream = System.in;
        OutputStream outputStream = System.out;
        Scanner in = new Scanner(inputStream);
        PrintWriter out = new PrintWriter(outputStream);
        C solver = new C();
        solver.solve(1, in, out);
        out.close();
    }

    static class C {
        public void solve(int testNumber, Scanner in, PrintWriter out) {
            // 入力
            String S = in.next();
            long k = Long.parseLong(in.next());

            for (int i = 0; i < Math.min(S.length(), k); i++) {
                if (S.charAt(i) >= '2') {
                    out.println(S.charAt(i));
                    return;
                }
            }
            out.println(1);

        }

    }
}
 import java.io.OutputStream; OutputStream java.io import java.io.IOException; IOException java.io import java.io.InputStream; InputStream java.io import java.io.PrintWriter; PrintWriter java.io import java.util.Scanner; Scanner java.util public class Main {
    public static void main(String[] args) {
        InputStream inputStream = System.in;
        OutputStream outputStream = System.out;
        Scanner in = new Scanner(inputStream);
        PrintWriter out = new PrintWriter(outputStream);
        C solver = new C();
        solver.solve(1, in, out);
        out.close();
    }

    static class C {
        public void solve(int testNumber, Scanner in, PrintWriter out) {
            // 入力
            String S = in.next();
            long k = Long.parseLong(in.next());

            for (int i = 0; i < Math.min(S.length(), k); i++) {
                if (S.charAt(i) >= '2') {
                    out.println(S.charAt(i));
                    return;
                }
            }
            out.println(1);

        }

    }
} Main public static void main(String[] args) {
        InputStream inputStream = System.in;
        OutputStream outputStream = System.out;
        Scanner in = new Scanner(inputStream);
        PrintWriter out = new PrintWriter(outputStream);
        C solver = new C();
        solver.solve(1, in, out);
        out.close();
    } main {
        InputStream inputStream = System.in;
        OutputStream outputStream = System.out;
        Scanner in = new Scanner(inputStream);
        PrintWriter out = new PrintWriter(outputStream);
        C solver = new C();
        solver.solve(1, in, out);
        out.close();
    } InputStream inputStream = System.in; inputStream System.in System System.in OutputStream outputStream = System.out; outputStream System.out System System.out Scanner in = new Scanner(inputStream); in new Scanner(inputStream) PrintWriter out = new PrintWriter(outputStream); out new PrintWriter(outputStream) C solver = new C(); solver new C() solver.solve(1, in, out) solver.solve solver 1 in out out.close() out.close out String[] args args static class C {
        public void solve(int testNumber, Scanner in, PrintWriter out) {
            // 入力
            String S = in.next();
            long k = Long.parseLong(in.next());

            for (int i = 0; i < Math.min(S.length(), k); i++) {
                if (S.charAt(i) >= '2') {
                    out.println(S.charAt(i));
                    return;
                }
            }
            out.println(1);

        }

    } C public void solve(int testNumber, Scanner in, PrintWriter out) {
            // 入力
            String S = in.next();
            long k = Long.parseLong(in.next());

            for (int i = 0; i < Math.min(S.length(), k); i++) {
                if (S.charAt(i) >= '2') {
                    out.println(S.charAt(i));
                    return;
                }
            }
            out.println(1);

        } solve {
            // 入力
            String S = in.next();
            long k = Long.parseLong(in.next());

            for (int i = 0; i < Math.min(S.length(), k); i++) {
                if (S.charAt(i) >= '2') {
                    out.println(S.charAt(i));
                    return;
                }
            }
            out.println(1);

        } String S = in.next(); S in.next() in.next in long k = Long.parseLong(in.next()); k Long.parseLong(in.next()) Long.parseLong Long in.next() in.next in for (int i = 0; i < Math.min(S.length(), k); i++) {
                if (S.charAt(i) >= '2') {
                    out.println(S.charAt(i));
                    return;
                }
            } int i = 0; int i = 0; i 0 i < Math.min(S.length(), k) i Math.min(S.length(), k) Math.min Math S.length() S.length S k i++ i++ i {
                if (S.charAt(i) >= '2') {
                    out.println(S.charAt(i));
                    return;
                }
            } {
                if (S.charAt(i) >= '2') {
                    out.println(S.charAt(i));
                    return;
                }
            } if (S.charAt(i) >= '2') {
                    out.println(S.charAt(i));
                    return;
                } S.charAt(i) >= '2' S.charAt(i) S.charAt S i '2' {
                    out.println(S.charAt(i));
                    return;
                } out.println(S.charAt(i)) out.println out S.charAt(i) S.charAt S i return; out.println(1) out.println out 1 int testNumber testNumber Scanner in in PrintWriter out out public class Main {
    public static void main(String[] args) {
        InputStream inputStream = System.in;
        OutputStream outputStream = System.out;
        Scanner in = new Scanner(inputStream);
        PrintWriter out = new PrintWriter(outputStream);
        C solver = new C();
        solver.solve(1, in, out);
        out.close();
    }

    static class C {
        public void solve(int testNumber, Scanner in, PrintWriter out) {
            // 入力
            String S = in.next();
            long k = Long.parseLong(in.next());

            for (int i = 0; i < Math.min(S.length(), k); i++) {
                if (S.charAt(i) >= '2') {
                    out.println(S.charAt(i));
                    return;
                }
            }
            out.println(1);

        }

    }
} public class Main {
    public static void main(String[] args) {
        InputStream inputStream = System.in;
        OutputStream outputStream = System.out;
        Scanner in = new Scanner(inputStream);
        PrintWriter out = new PrintWriter(outputStream);
        C solver = new C();
        solver.solve(1, in, out);
        out.close();
    }

    static class C {
        public void solve(int testNumber, Scanner in, PrintWriter out) {
            // 入力
            String S = in.next();
            long k = Long.parseLong(in.next());

            for (int i = 0; i < Math.min(S.length(), k); i++) {
                if (S.charAt(i) >= '2') {
                    out.println(S.charAt(i));
                    return;
                }
            }
            out.println(1);

        }

    }
} Main
import java.io.OutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.PrintWriter;
import java.util.Scanner;

/**
 * Built using CHelper plug-in
 * Actual solution is at the top
 */
public class Main {
    public static void main(String[] args) {
        InputStream inputStream = System.in;
        OutputStream outputStream = System.out;
        Scanner in = new Scanner(inputStream);
        PrintWriter out = new PrintWriter(outputStream);
        C solver = new C();
        solver.solve(1, in, out);
        out.close();
    }

    static class C {
        public void solve(int testNumber, Scanner in, PrintWriter out) {
            // 入力
            String S = in.next();
            long k = Long.parseLong(in.next());

            for (int i = 0; i < Math.min(S.length(), k); i++) {
                if (S.charAt(i) >= '2') {
                    out.println(S.charAt(i));
                    return;
                }
            }
            out.println(1);

        }

    }
}

