#include <stdio.h>
#include <stdlib.h>
#include <string.h>

int main(void)
{
    int kouka_1,kouka_25,kouka_100;
    scanf("%d",&kouka_100);
    scanf("%d",&kouka_25);
    scanf("%d",&kouka_1);
    if(kouka_1>=25)
    {
        kouka_25+=kouka_1/25;
        kouka_1=kouka_1%25;
    }
    if(kouka_25>=4)
    {
        kouka_100+=kouka_25/4;
        kouka_25=kouka_25%4;
    }
    if(kouka_100>=10)
    {
        kouka_100=kouka_100%10;
    }
    int kouka_total=kouka_1+kouka_25+kouka_100;
    printf("%d",kouka_total);
}