题解

#include<iostream>
using namespace std;
int week,n,num;
int main(){
    cin>>week>>n;
    for(int i=1;i<=n;i++,week++){
        if(week==8){
            week=1;
        }
        if(week!=6 && week!=7){
            num+=250;
        }
    }
    cout<<num;
}