#include <iostream>
using namespace std;
int main()
{
cout<<"A "<<endl;
cout<<"AAA "<<endl;
cout<<"AAAAA "<<endl;
cout<<"AAAAAAA "<<endl;
return 0;
}

#include <iostream>
using namespace std;
int main()
{
cout<<"A"<<endl;
cout<<"AAA"<<endl;
cout<<"AAAAA"<<endl;
cout<<"AAAAAAA"<<endl;
return 0;
}