#!/usr/bin/env cscript
#include <stdio.h>
#define ALPHABET "ABCDEFGHIJKLMNOPWRSTUVWXYZ"
int
main(int argc, char *argv[]) {
	int column_index = 26, needle_column_index_string;
	char column_index_string[3 + 1];

	for (needle_column_index_string = 0; column_index > 0; needle_column_index_string++) {
		column_index_string[needle_column_index_string] = column_index % ('Z' - 'A' + 1) + 'A' - 1;
		column_index /= ('Z' - 'A' + 1);
	}

	puts(column_index_string);
	return 0;
}