on right click:
	if clicked block is sign:
		if line 1 is "&1Ulepszanie":
			if player's tool is iron sword of sharpness 4 named "&6Test &7Poziom 1":
				open chest with 1 rows named "Ulepszanie" to player
				format slot 1 of player with 1 of iron sword of sharpness 4 named "&6Test &7Poziom 1" to be unstealable
				format slot 2 of player with 1 of anvil named "&7Ulepszasz na &f>" to be unstealable
				format slot 3 of player with 1 of iron sword of sharpness 5 named "&6Test &7Poziom 2" to be unstealable
				format slot 5 of player with 1 of paper named "&3Szansa: &f100" with lore "&7Potrzebne przedmioty: &f500 Monet &7oraz &f1 Skora" to be unstealable
				format slot 7 of player with 1 of stone named "&aUlepsz" to close then run [execute player command "fexy1"]
				format slot 8 of player with 1 of stone named "&cAnuluj" to close
				
command /fexy1 [<player>]:
	trigger:
		if player's tool is iron sword of sharpness 4 named "&6Test &7Poziom 1":
			if player's balance is greater than 500:
				if player has 1 leather:
					remove iron sword of sharpness 4 named "&6Test &7Poziom 1" from the player
					remove 1 leather from the player
					remove 500 from the player's balance
					give iron sword of sharpness 5 named "&6Test &7Poziom 2" to the player
				else:
					send "&8> &cNie masz wszystkich przedmiotow." to the player
			else:
				send "&8> &cNie masz tyle pieniedzy." to the player
		else:
			send "&8> &cNie masz wszystkich przedmiotow." to the player