#include<bits/stdc++.h> using namespace std; int main() { int money1[12],money2[12],s1=0,s2=0,cash[12]={}; for(int i=0;i<12;i++) { cin>>money[i]; } for(int i=0;i<12;i++) { cash[i]=(300-money1[i])%100-money1[i]; money2[i]=300-cash[i]+money1[i]; s1+=cash[i]; s2+=money2[i]; if(cash[i]<money[i]) { cout<<"-"<<i+1; break; } if(i==11) { cout<<s1+s2*2.0; } } return 0; }