#include <bits/stdc++.h>
#if 1 && defined(LOCAL)
#include <LOCAL/LOCAL.hpp>
#else
#define debug(...)
#define line
#endif
using namespace std;
typedef long long ll;
typedef long double ld;
#define all(x) (x).begin(), (x).end()
#define rall(x) (x).rbegin(), (x).rend()
template<typename T> inline bool chmax(T &a, T b) { return ((a < b) ? (a = b, true) : (false)); }
template<typename T> inline bool chmin(T &a, T b) { return ((a > b) ? (a = b, true) : (false)); }

int main() {
    int sum=0;
    int L,M,N;
    cin>>L>>M>>N;
    sum+=L*100;
    sum+=M*25;
    sum+=N;
    debug(sum);
    int ans=0;
    int satu=0;
    ans+=sum/1000;
    satu+=sum/1000;
    sum%=1000;
    ans+=sum/100;
    sum%=100;
    ans+=sum/25;
    sum%=25;
    ans+=sum;
    cout<<ans-satu<<endl;
}