on rightclick on sign:
	if line 1 is "&a&l[kupno]":
		set {_iloscK} to line 2 parsed as number
		set {_itemK} to line 3 parsed as item
		set {_kasaK} to line 4 parsed as number
		if player's money is less than 100:
			send "&cBRAK PIENIEDZY"
		else:
			remove 100 from player's money
			add {_iloscK} of {_itemK} to player's inventory  
			send "&7[&3&lSklep&7] &aKupiles %{_iloscK}% stone sword za %{_kasaK}%"
on rightclick on sign:
	if line 1 is "&c&l[Sprzedasz]":
		set {_iloscS} to line 2 parsed as number
		set {_itemS} to line 3 parsed as item
		set {_kasaS} to line 4 parsed as number
		if player has stone sword in inventory:
			add {_kasaS} to player's money
			set {_iloscS} to 32
			set {_itemS} to {_itemS}
			set {_itemS} to "%{_iloscS}% %{_itemS}%"
			remove "%{_itemS}%" from player's 
			send "&7[&3&lSklep&7] &aSprzedales %{_itemS}% za %{_kasaS}%"
		else:
			send "&7[&3&lSklep&7] &cNie Posiadasz %{_itemS}%"