#include <iostream>
using namespace std;
int main() {
int c = 0,i,j,k;
for(i = 1 ; i<=5 ; i++){
for(j = 4 ; j>= i ; j--){
cout<<" ";
}
for(k = 1 ; k<=i ; k++){
cout<<(char)(c+65);
c--;
}
c = c + 2*i + 1;
cout<<endl;
}
return 0;
}
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