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

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

	strcpy(column_string, "A");

	
	for (int index = 1; index <= 78; index++) {
		puts(column_string);
	}

	return 0;
}