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