```cpp
#include<bits/stdc++.h>
using namespace std;
int main(){
long long a[12], b = 300, c = 0, d = 0;
for(long long i = 0; i < 12; i++){
cin>>a[i];
}
for(long long i = 0; i < 12; i++){
d += (300 - a[i] + c) / 100 * 100;
c = (300 - a[i] + c) % 100;
if(c < 0){
cout<<-(i + 1);
return 0;
}
}
cout<<(long long)( c + d + d * 0.2);
return 0;
}
```
还有，我不是帅哥美女。。。
by WilliamFranklin @ 2023-03-11 18:53:58