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

int
main(int argc, char *argv[]) {
	const char *ALPHABET = "ABCDEFGHIJKLMNOPQRSTUVWXYZ";
	int column_index;
	char *column_string = "ABC";
	char *needle;

	column_index = 0;

	for (needle = column_string; *needle != '\0'; needle++) {
		column_index *= 'Z' - 'A';
		column_index += strchr(*needle, ALPHABET) - ALPHABET;
	}

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