command /sprawdz [<offlineplayer>]:
    trigger:
        if arg-1 is online:
            if (size of {targ.itemy.%arg-1%::*}) = 0:
                send "&cTen gracz nie ma wystawionych zadnych przedmiotow."
                stop
            set {name.%Player%} to "%arg-1%"
            loop 27 times:
                if {targ.itemy.%{name.%player%}%::%loop-number%} is not set:
                    if {targ.itemy.%{name.%player%}%::%loop-number +1%} is set:
                        set {targ.itemy.%{name.%player%}%::%loop-number%} to {targ.itemy.%{name.%player%}%::%loop-number +1%}
                        delete {targ.itemy.%{name.%player%}%::%loop-number +1%}
                        set {targ.koszty.%{name.%player%}%::%loop-number%} to {targ.koszty.%{name.%player%}%::%loop-number +1%}
                        delete {targ.koszty.%{name.%player%}%::%loop-number +1%}
            open chest with 4 rows named "Targ: %{name.%player%}%" to player
            wait 1 tick
            set player's current inventory's slot 31 to arrow named "&cPowrot"
            loop 27 times:
                set {_x::*} to lore of {targ.itemy.%{name.%player%}%::%loop-number%}
                loop lore of {targ.itemy.%{name.%player%}%::%loop-number%}:
                    loop-value-2 contains "Koszt:"
                    set {_koszt} to true
                {_koszt} is not set
                add "&7Koszt:&6 %{targ.koszty.%{name.%player%}%::%loop-number%}%" to {_x::*}
                set player's current inventory's slot loop-number -1 to {targ.itemy.%{name.%player%}%::%loop-number%} with lore {_x::*}
        else:
            send "&7Uzycie: &6/sprawdz <nick>"