#include<bits/stdc++.h> using namespace std; int a[13],t=0,s=0; int main() { for(int i=1;i<=12;++i) { s+=300; cin>>a[i]; if(s-a[i]<0) { cout<<"-"<<i<<endl; return 0; } s-=a[i]; while(s>100) { s-=100; t+=100; } } t*=1.2; cout<<t+s<<endl; return 0; }