#include<stdio.h>
int main(void){
    int l,m,n,sum,ans=0;
    scanf("%d%d%d",&l,&m,&n);
    sum = l*100+m*25+n;
    sum %= 1000;
    ans += sum/100;
    sum %= 100;
    ans += sum/25;
    sum %= 25;
    ans += sum;
    printf("%d\n",ans);
    return 0;
}