B3657 C＋＋

#include<iostream>
using namespace std;
int main()
{
	int a, b;
	cin >> a >> b;
	if (a == 0)
	{
		cout << 40 * b;
	}
	if (b == 0)
	{
		cout << 60 * a;
	}
	if (a > 0 && b > 0)
	{
		if (a > b)
		{
			cout << b * 90 + (a - b) * 60;
		}
		else
		{
			cout << a * 90 + (a - b) * 40;
		}
	}
	return 0;
}