Fast

command /szglowa <integer> <integer>:
	usage: /szglowa <linijka_lore> <ilosc_loopow>
	trigger:
		set block at player to chest
		set {_z} to block at player
		set {_i} to player's tool
		loop arg 2 times:
			set {_a} to line arg 1 of lore of {_i}
			set {_a} to last 2 characters of {_a} parsed as integer
			set {_l} to line arg 1 of lore of {_i}
			replace all "+%{_a}%" with "+%{_a}+1%" in {_l}
			set line arg 1 of lore of {_i} to {_l}
			add {_i} to {_z}'s inventory