```
#include<iostream>
using namespace std;
int money,cost,mama,flag=1,monthofdeath;
int main ()
{
for(int i=1;i<=12;i++)
{
money+=300;
cin>>cost;
money-=cost;
if(money<0)
{
flag=0;
monthofdeath=i;
break;
}
mama+=money/100;
money%=100;
}
if(flag==1)
{
money+=mama*120;
cout<<money;
}
else
{
cout<<-monthofdeath;
}
return 0;
}
```
by RenSiYu6 @ 2022-10-29 18:57:48