#!/bin/sh
set -ex

needle=$(pnmnoraw)

exec 3<database.ppm

while true; do
	read <&3 title
	if [ x"$title" = x. ]; then
		exit 0
	fi
	straw=$(pnmnoraw <&3)
	if [ x"$straw" = x"$needle" ]; then
		printf "%s\n" "$title"
		exit 0
	fi
done