import java .util.Scanner;

public class Money {
    public static void main(String args[]) {
        Scanner stdIn = new Scanner(System.in);

        int L = stdIn.nextInt(); //100円
        int M = stdIn.nextInt(); //25円
        int N = stdIn.nextInt(); //1円


        do {
            if(N >= 25) {
                N = N - 25;
                M++;
            }
        } while (N >= 25);

        do {
            if(M >= 4) {
                M = M - 4;
                L++;
            }
        } while (M >= 4);

        do{
            if(L >= 10){
                L = L - 10;
            }
        }while(L >= 10);
        int sum = L + M + N;
        System.out.println(sum);
    }

}