#! /bin/sh

: '@(#)yearistype.sh	7.2'

case $#-$2 in
	2-odd)	case $1 in
			*[13579])	exit 0 ;;
			*)		exit 1 ;;
		esac ;;
	2-even)	case $1 in
			*[24680])	exit 0 ;;
			*)		exit 1 ;;
		esac ;;
	2-*)	echo "$0: wild type - $2" >&2
		exit 1 ;;
	*)	echo "$0: usage is $0 year type" >&2
		exit 1 ;;
esac