#include <iostream>
#include <iomanip>

#include <algorithm>
#include <string>
/////////
#define REP(i, x, n) for(int i = x; i < n; i++)
#define rep(i,n) REP(i,0,n)
#define P(p) cout<<(p)<<endl;
/////////
typedef long long LL;
typedef long double LD;
/////////
using namespace::std;
/////////

int main(void){
	cin.tie(0);
	ios::sync_with_stdio(false);
	cout << fixed;//
	//cout << setprecision(7);//
	
	int L,M,N;
	cin >>L>>M>>N;

	int k001 = N;
	int k025 = M;
	int k100 = L;

	k025 += k001/25;
	k001  = k001%25;

	k100 += k025/4;
	k025  = k025%4;

	////
	k100  = k100%10;
	P(k001+k025+k100);
	return 0;
}