#include <stdio.h>

int main() {
    long L=0,M=0,N=0,G=0,A=0;
    scanf("%ld\n, %ld\n, %ld\n", &L, &M, &N);
    A += N % 25;
    M += N / 25;
    A += M % 4;
    L += M / 4;
    A += L % 10;
    G += L / 10;
    A += G;
    printf("%ld\n", A);
}