#include <iostream>
using namespace std;
int main() {
// ques1
int n ;
cin>>n;
for(int i = 1 ; i <=n; i++){
for(int j =1 ; j <=i ; j++){
cout <<i;
}
cout << endl;
}
for(int i = 65 ; i <= 64+n; i++){
for(int j = 65; j <= i; j++){
cout << char(i);
}
cout << endl;
}
return 0;
}
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