#include<iostream> using namespace std; int main() { int x,n,i,j; cin>>x>>n; for (i = 1;i <= n;i++) { if (x == 7) { x = 1; } else if (x != 6 || x != 7) { j += 1; } x += 1; } cout<<j * (100 + 150) - 500; }