#include <iostream>
using namespace std;

int main() {
    int n=7;
    
    for(int i=0;i<n;i++){//outer
        char ch='A';
    for(int j=0;j<n;j++){//inner start=>line start
        cout<<ch<<" ";
        ch=ch+1;                 
        }

        cout<<endl;
    }
    return 0;
}