if : ; then
	set -e
	N=95
	while :; do
		# expr returns 1 if expression is null or 0
		set +e
		N_MOD_100=`expr $N % 100`
		set -e
		echo $N_MOD_100
		N=`expr $N + 1`
		if [ $N -eq 110 ]; then
			break
		fi
	done
	set +e
fi
# command subst should not inherit -e
set -e
echo $(false; echo ok)