#include <stdio.h>

int main(void){
    unsigned short L, M, N;
    
    scanf("%hu\n%hu\n%hu\n", &L, &M, &N);
    M += N / 25;
    N %= 25;
    L += M / 4;
    M %= 4;
    L %= 10;
    
    printf("%u\n", L+M+N);
    
    return 0;
}