10分，求调

#include<bits/stdc++.h>
#define N 202000
#define M 2020
#define ll long long
using namespace std;
ll x, n, sum;
int main(){
	cin.tie(0);cout.tie(0);
	cin >> x >> n;
	while ( n > 0 ){
		if ( x > 6 ){
			x = 1;
		}
		if ( x < 6 ){
			sum += 250;
		}
		x++;
		n--;
	}
	cout << sum;
	return 0;
}