function kantor(p: player):
    if tool of {_p} is Gold Ingot named "&e&lMoneta":
        remove 1 of Gold Ingot named "&e&lMoneta" from {_p}
        wait 2 tick
        add 1 to {_p}'s balance
    else:
        send "Nie masz monety" to {_p}
command /kantor [<text>]:
    trigger:
        open virtual chest inventory with 1 row named "&a&lKantor" to player
        make gui slot 4 of player with stone to run function kantor(player)