#include <iostream>
#include <vector>
#include <string>
#include <algorithm>
#include <cmath>

#define rep(i,n) for(i=0; i<n; ++i)
#define in(a) cin >> a
#define out(a,b) cout << a << b
using namespace std;
using lint = long long;

int main(void){
    int i, j, a, b, c, n, cnt = 0;

    in(a);
    in(b);
    in(c);

    int sum = a*100 + b*25 + c;

    sum%=1000;
    cnt+=sum/100;
    sum%=100;
    cnt+=sum/25;
    sum%=25;
    cnt+=sum;

    out(cnt,endl);

    return 0;
}