//No.32 貯金箱の憂鬱

import java.util.*;
import java.io.*;
import static java.util.Arrays.*;
import static java.lang.Math.*;

public class No32 {
    
    static final Scanner sc = new Scanner(System.in);
    static final PrintWriter out = new PrintWriter(System.out,false);

    static void solve() {
        int l = sc.nextInt();
        int m = sc.nextInt() + l/25;
        int n = sc.nextInt() + m/4;
        l = l%25;
        m = m%4;
        n = n%10;
        out.println((l+m+n));
    }

    public static void main(String[] args) {
        long start = System.currentTimeMillis();

        solve();
        out.flush();

        long end = System.currentTimeMillis();
        //trace(end-start + "ms");
        sc.close();
    }

    static void trace(Object... o) { System.out.println(deepToString(o));}
}