#!/usr/bin/env cscript
#include <stdio.h>
#include <string.h>
#define ALPHABET "ABCDEFGHIJKLMNOPQRSTUVWXYZ"

int
main(int argc, const char *argv[]) {
	char column_string[3 + 1], *needle_column_string;

	strcpy(column_string, "A");

	for (int i = 0; i < 78; i++) {
		puts(column_string);

		needle_column_string = &column_string[strlen(column_string) - 1];
	}

	return 0;
}