#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;
}

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