#include <stdio.h>
#include <assert.h>
#include <stdlib.h>


int main (int argc, char ** argv)
{
	int month;
	if (argc < 2) {
		fprintf (stderr, "Too few arguments\n");
		return 1;
	}

	month = atoi (argv[1]);
	assert ((month >= 1) && (month <= 12));

	return 0;
}
