题解 100% AC

#include<bits/stdc++.h>
using namespace std;
int main(){
    int x,n,m=0;
    cin>>x>>n;
    while(n--){
        if(x!=6&&x!=7)m=m+250;
        if(x==6)x=7;
        else if(x==7)x=1;
        else x++;
    }
    cout<<m;
    return 0;
}