#include <iostream>
using namespace std;
int main() {
// your code goes here
char ch ;
cout << "enter the char " << " " ;
cin >> ch ;
for(char i='A';i<=ch;i++)
{
for(char j='A';j<=i;j++)
{
cout << i << " " ;
}
cout << endl ;
}
return 0;
}
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