#!/usr/bin/env cscript
#include <stdio.h>
#include <string.h>

int
main(int argc, char *argv[]) {
	int column_index, column_index_needle;
	char ALPHABET['Z' - 'A' + 2], *alphabet_needle, column_index_string[3 + 1];

	for (alphabet_needle = &ALPHABET[0];
	     alphabet_needle < &ALPHABET['Z' - 'A' + 1]; alphabet_needle++) {
		*alphabet_needle = alphabet_needle - &ALPHABET[0] + 'A';
	}

	strcpy(column_index_string, "AB");

	puts(column_index_string);

	for (column_index = 0, column_index_needle = 0;
	     column_index_string[column_index_needle] != '\0'; column_index_needle++) {
		column_index *= 'Z' - 'A' + 1;
		column_index += column_index_string[column_index_needle] - 'A' + 1; 
	}

	printf("%d\n", column_index);
}