import java.io.OutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.PrintWriter;
import java.util.StringTokenizer;
import java.io.IOException;
import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.io.InputStream;

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

    static class BFiveDishes {
        static final int m = 10;
        static final int n = 5;

        public void solve(int testNumber, InputReader in, PrintWriter out) {
            int[] times = new int[n];
            for (int i = 0; i < n; i++) {
                times[i] = in.nextInt();
            }

            int answer = 0;

            for (int x : times) {
                answer += m * ((x + m - 1) / m);
            }

            int min = m;
            for (int x : times) {
                if (x % m > 0) min = Math.min(min, x % m);
            }

            answer -= m;
            answer += min;

            out.println(answer);
        }

    }

    static class InputReader {
        public BufferedReader reader;
        public StringTokenizer tokenizer;

        public InputReader(InputStream stream) {
            reader = new BufferedReader(new InputStreamReader(stream), 32768);
            tokenizer = null;
        }

        public String next() {
            while (tokenizer == null || !tokenizer.hasMoreTokens()) {
                try {
                    tokenizer = new StringTokenizer(reader.readLine());
                } catch (IOException e) {
                    throw new RuntimeException(e);
                }
            }
            return tokenizer.nextToken();
        }

        public int nextInt() {
            return Integer.parseInt(next());
        }

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

    static class BFiveDishes {
        static final int m = 10;
        static final int n = 5;

        public void solve(int testNumber, InputReader in, PrintWriter out) {
            int[] times = new int[n];
            for (int i = 0; i < n; i++) {
                times[i] = in.nextInt();
            }

            int answer = 0;

            for (int x : times) {
                answer += m * ((x + m - 1) / m);
            }

            int min = m;
            for (int x : times) {
                if (x % m > 0) min = Math.min(min, x % m);
            }

            answer -= m;
            answer += min;

            out.println(answer);
        }

    }

    static class InputReader {
        public BufferedReader reader;
        public StringTokenizer tokenizer;

        public InputReader(InputStream stream) {
            reader = new BufferedReader(new InputStreamReader(stream), 32768);
            tokenizer = null;
        }

        public String next() {
            while (tokenizer == null || !tokenizer.hasMoreTokens()) {
                try {
                    tokenizer = new StringTokenizer(reader.readLine());
                } catch (IOException e) {
                    throw new RuntimeException(e);
                }
            }
            return tokenizer.nextToken();
        }

        public int nextInt() {
            return Integer.parseInt(next());
        }

    }
} Main public static void main(String[] args) {
        InputStream inputStream = System.in;
        OutputStream outputStream = System.out;
        InputReader in = new InputReader(inputStream);
        PrintWriter out = new PrintWriter(outputStream);
        BFiveDishes solver = new BFiveDishes();
        solver.solve(1, in, out);
        out.close();
    } main {
        InputStream inputStream = System.in;
        OutputStream outputStream = System.out;
        InputReader in = new InputReader(inputStream);
        PrintWriter out = new PrintWriter(outputStream);
        BFiveDishes solver = new BFiveDishes();
        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 InputReader in = new InputReader(inputStream); in new InputReader(inputStream) PrintWriter out = new PrintWriter(outputStream); out new PrintWriter(outputStream) BFiveDishes solver = new BFiveDishes(); solver new BFiveDishes() solver.solve(1, in, out) solver.solve solver 1 in out out.close() out.close out String[] args args static class BFiveDishes {
        static final int m = 10;
        static final int n = 5;

        public void solve(int testNumber, InputReader in, PrintWriter out) {
            int[] times = new int[n];
            for (int i = 0; i < n; i++) {
                times[i] = in.nextInt();
            }

            int answer = 0;

            for (int x : times) {
                answer += m * ((x + m - 1) / m);
            }

            int min = m;
            for (int x : times) {
                if (x % m > 0) min = Math.min(min, x % m);
            }

            answer -= m;
            answer += min;

            out.println(answer);
        }

    } BFiveDishes static final int m = 10; m 10 static final int n = 5; n 5 public void solve(int testNumber, InputReader in, PrintWriter out) {
            int[] times = new int[n];
            for (int i = 0; i < n; i++) {
                times[i] = in.nextInt();
            }

            int answer = 0;

            for (int x : times) {
                answer += m * ((x + m - 1) / m);
            }

            int min = m;
            for (int x : times) {
                if (x % m > 0) min = Math.min(min, x % m);
            }

            answer -= m;
            answer += min;

            out.println(answer);
        } solve {
            int[] times = new int[n];
            for (int i = 0; i < n; i++) {
                times[i] = in.nextInt();
            }

            int answer = 0;

            for (int x : times) {
                answer += m * ((x + m - 1) / m);
            }

            int min = m;
            for (int x : times) {
                if (x % m > 0) min = Math.min(min, x % m);
            }

            answer -= m;
            answer += min;

            out.println(answer);
        } int[] times = new int[n]; times new int[n] n for (int i = 0; i < n; i++) {
                times[i] = in.nextInt();
            } int i = 0; int i = 0; i 0 i < n i n i++ i++ i {
                times[i] = in.nextInt();
            } {
                times[i] = in.nextInt();
            } times[i] = in.nextInt() times[i] times i in.nextInt() in.nextInt in int answer = 0; answer 0 for (int x : times) {
                answer += m * ((x + m - 1) / m);
            } int x times {
                answer += m * ((x + m - 1) / m);
            } {
                answer += m * ((x + m - 1) / m);
            } answer += m * ((x + m - 1) / m) answer m * ((x + m - 1) / m) m ((x + m - 1) / m) (x + m - 1) x + m x m 1 m int min = m; min m for (int x : times) {
                if (x % m > 0) min = Math.min(min, x % m);
            } int x times {
                if (x % m > 0) min = Math.min(min, x % m);
            } {
                if (x % m > 0) min = Math.min(min, x % m);
            } if (x % m > 0) min = Math.min(min, x % m); x % m > 0 x % m x m 0 min = Math.min(min, x % m) min Math.min(min, x % m) Math.min Math min x % m x m answer -= m answer m answer += min answer min out.println(answer) out.println out answer int testNumber testNumber InputReader in in PrintWriter out out static class InputReader {
        public BufferedReader reader;
        public StringTokenizer tokenizer;

        public InputReader(InputStream stream) {
            reader = new BufferedReader(new InputStreamReader(stream), 32768);
            tokenizer = null;
        }

        public String next() {
            while (tokenizer == null || !tokenizer.hasMoreTokens()) {
                try {
                    tokenizer = new StringTokenizer(reader.readLine());
                } catch (IOException e) {
                    throw new RuntimeException(e);
                }
            }
            return tokenizer.nextToken();
        }

        public int nextInt() {
            return Integer.parseInt(next());
        }

    } InputReader public BufferedReader reader; reader public StringTokenizer tokenizer; tokenizer public InputReader(InputStream stream) {
            reader = new BufferedReader(new InputStreamReader(stream), 32768);
            tokenizer = null;
        } InputReader {
            reader = new BufferedReader(new InputStreamReader(stream), 32768);
            tokenizer = null;
        } reader = new BufferedReader(new InputStreamReader(stream), 32768) reader new BufferedReader(new InputStreamReader(stream), 32768) tokenizer = null tokenizer null InputStream stream stream public String next() {
            while (tokenizer == null || !tokenizer.hasMoreTokens()) {
                try {
                    tokenizer = new StringTokenizer(reader.readLine());
                } catch (IOException e) {
                    throw new RuntimeException(e);
                }
            }
            return tokenizer.nextToken();
        } next {
            while (tokenizer == null || !tokenizer.hasMoreTokens()) {
                try {
                    tokenizer = new StringTokenizer(reader.readLine());
                } catch (IOException e) {
                    throw new RuntimeException(e);
                }
            }
            return tokenizer.nextToken();
        } while (tokenizer == null || !tokenizer.hasMoreTokens()) {
                try {
                    tokenizer = new StringTokenizer(reader.readLine());
                } catch (IOException e) {
                    throw new RuntimeException(e);
                }
            } tokenizer == null || !tokenizer.hasMoreTokens() tokenizer == null tokenizer null !tokenizer.hasMoreTokens() tokenizer.hasMoreTokens() tokenizer.hasMoreTokens tokenizer {
                try {
                    tokenizer = new StringTokenizer(reader.readLine());
                } catch (IOException e) {
                    throw new RuntimeException(e);
                }
            } try {
                    tokenizer = new StringTokenizer(reader.readLine());
                } catch (IOException e) {
                    throw new RuntimeException(e);
                } catch (IOException e) {
                    throw new RuntimeException(e);
                } IOException e {
                    throw new RuntimeException(e);
                } throw new RuntimeException(e); new RuntimeException(e) {
                    tokenizer = new StringTokenizer(reader.readLine());
                } tokenizer = new StringTokenizer(reader.readLine()) tokenizer new StringTokenizer(reader.readLine()) return tokenizer.nextToken(); tokenizer.nextToken() tokenizer.nextToken tokenizer public int nextInt() {
            return Integer.parseInt(next());
        } nextInt {
            return Integer.parseInt(next());
        } return Integer.parseInt(next()); Integer.parseInt(next()) Integer.parseInt Integer next() next public class Main {
    public static void main(String[] args) {
        InputStream inputStream = System.in;
        OutputStream outputStream = System.out;
        InputReader in = new InputReader(inputStream);
        PrintWriter out = new PrintWriter(outputStream);
        BFiveDishes solver = new BFiveDishes();
        solver.solve(1, in, out);
        out.close();
    }

    static class BFiveDishes {
        static final int m = 10;
        static final int n = 5;

        public void solve(int testNumber, InputReader in, PrintWriter out) {
            int[] times = new int[n];
            for (int i = 0; i < n; i++) {
                times[i] = in.nextInt();
            }

            int answer = 0;

            for (int x : times) {
                answer += m * ((x + m - 1) / m);
            }

            int min = m;
            for (int x : times) {
                if (x % m > 0) min = Math.min(min, x % m);
            }

            answer -= m;
            answer += min;

            out.println(answer);
        }

    }

    static class InputReader {
        public BufferedReader reader;
        public StringTokenizer tokenizer;

        public InputReader(InputStream stream) {
            reader = new BufferedReader(new InputStreamReader(stream), 32768);
            tokenizer = null;
        }

        public String next() {
            while (tokenizer == null || !tokenizer.hasMoreTokens()) {
                try {
                    tokenizer = new StringTokenizer(reader.readLine());
                } catch (IOException e) {
                    throw new RuntimeException(e);
                }
            }
            return tokenizer.nextToken();
        }

        public int nextInt() {
            return Integer.parseInt(next());
        }

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

    static class BFiveDishes {
        static final int m = 10;
        static final int n = 5;

        public void solve(int testNumber, InputReader in, PrintWriter out) {
            int[] times = new int[n];
            for (int i = 0; i < n; i++) {
                times[i] = in.nextInt();
            }

            int answer = 0;

            for (int x : times) {
                answer += m * ((x + m - 1) / m);
            }

            int min = m;
            for (int x : times) {
                if (x % m > 0) min = Math.min(min, x % m);
            }

            answer -= m;
            answer += min;

            out.println(answer);
        }

    }

    static class InputReader {
        public BufferedReader reader;
        public StringTokenizer tokenizer;

        public InputReader(InputStream stream) {
            reader = new BufferedReader(new InputStreamReader(stream), 32768);
            tokenizer = null;
        }

        public String next() {
            while (tokenizer == null || !tokenizer.hasMoreTokens()) {
                try {
                    tokenizer = new StringTokenizer(reader.readLine());
                } catch (IOException e) {
                    throw new RuntimeException(e);
                }
            }
            return tokenizer.nextToken();
        }

        public int nextInt() {
            return Integer.parseInt(next());
        }

    }
} Main
import java.io.OutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.PrintWriter;
import java.util.StringTokenizer;
import java.io.IOException;
import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.io.InputStream;

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

    static class BFiveDishes {
        static final int m = 10;
        static final int n = 5;

        public void solve(int testNumber, InputReader in, PrintWriter out) {
            int[] times = new int[n];
            for (int i = 0; i < n; i++) {
                times[i] = in.nextInt();
            }

            int answer = 0;

            for (int x : times) {
                answer += m * ((x + m - 1) / m);
            }

            int min = m;
            for (int x : times) {
                if (x % m > 0) min = Math.min(min, x % m);
            }

            answer -= m;
            answer += min;

            out.println(answer);
        }

    }

    static class InputReader {
        public BufferedReader reader;
        public StringTokenizer tokenizer;

        public InputReader(InputStream stream) {
            reader = new BufferedReader(new InputStreamReader(stream), 32768);
            tokenizer = null;
        }

        public String next() {
            while (tokenizer == null || !tokenizer.hasMoreTokens()) {
                try {
                    tokenizer = new StringTokenizer(reader.readLine());
                } catch (IOException e) {
                    throw new RuntimeException(e);
                }
            }
            return tokenizer.nextToken();
        }

        public int nextInt() {
            return Integer.parseInt(next());
        }

    }
}

