#include<iostream>
#include<iomanip>
#include<algorithm>
#include<vector>
#include<string>
#include<math.h>

#define FOR(i,a,b) for(int i=(a);i<(b);i++)
#define REP(i,n) for(int i=0;i<(n);i++)
#define ALL(i) (i).begin(),(i).end()
#define rALL(i) (i).rbegin(),(i).rend()
#define debug(x) cout<<#x<<": "<<x<<endl
#define pi M_PI

typedef long long ll;
typedef unsigned long long ull;

using namespace std;

int main(){
    cin.tie(0);
    ios::sync_with_stdio(false);
/*-------- code --------*/
    int l, m, n;
    int t, res = 0;

    cin >> l >> m >> n;
    t = l*100 + m*25 + n;
    if(t >= 1000){
        t = t%1000;
    }
    if(t >= 100){
        res += t/100;
        t= t%100;
    }
    if(t >= 25){
        res += t/25;
        t = t%25;
    }
    res += t;
    cout << res << endl;
}