include

using namespace std;

int main() {

double kg;
int d, V, m = 0;
cin >> kg >> d>> V;
if (kg > 20) {
	double a = kg - 20;
	int b = a / 5 + 0.9999;
	m = 20 + b * 6;
} else
	m = 20;
if (d > 200) {
	int a = d - 200;
	int b = a*1.0 / 10 + 0.9999;
	m += 40 + b * 5;
} else
	m += 40;
if (V > 24) {
	m += 10;
}
cout << m;
return 0;

}