#include

using namespace std;

int main()

{int a1, a2, a3;

LOOP:cin>>a1>>a2>>a3;

while(a1!=0 && a2!=0 && a3!=0)

{

if((a2-a1)==(a3-a2))

cout<<“AP “<<(a3+(a3-a2))<<”\n”;

if((a2/a1)==(a3/a2))

cout<<“GP “<<(a3*(a2/a1))<<”\n”;

goto LOOP;

}

```
return 0;
```

}

**Whats the problem with this code?**