#include using namespace std; int main() { double sum=0,mother=0; int yusuan; for(int i=1;i<=12;i++){ sum+=300; cin>>yusuan; sum-=yusuan; if(sum<0){ cout<<-i; return 0; } int x=sum/100; mother+=x100; sum-=x100; } cout<<mother*1.2+sum; return 0; }