on rightclick on sign:
	if line 1 of clicked block is "Kliknij, aby":
		if line 2 of clicked block is "wziac":
			if line 3 of clicked block is "zestaw do":
				if line 4 of clicked block is "nurkowania":
					give 351:11 named "&eZestaw do nurkowania" with lore "&cKliknij prawym, aby uzyc" to player
on rightclick with 351:11:
	if name of player's tool is "&eZestaw do nurkowania":
		remove 1 351:11 named "&eZestaw do nurkowania" from player
		apply night vision potion to player for 180 seconds
		apply night water breathing to player for 180 seconds
		send "&eUzyles zestawu do nurkowania" to player