#include<bits/stdc++.h> using namespace std; int main() { int m=0; int t=0; for(int i=1;i<=12;i++) { m+=300; int x; cin>>x; m-=x; if(m<0) { cout<<-i; return 0; } t=t+m/100*100; m=m%100; } cout<<t*1.2+m; }
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