tier1.add(Material.WOOD_SWORD);
        tier1.add(Material.STONE_SWORD);
        tier1.add(Material.LEATHER_HELMET);
        tier1.add(Material.STONE_AXE);
        tier1.add(Material.LEATHER_LEGGINGS);
        tier1.add(Material.LEATHER_BOOTS);
        tier2.add(Material.CHAINMAIL_HELMET);
        tier2.add(Material.CHAINMAIL_CHESTPLATE);
        tier2.add(Material.CHAINMAIL_LEGGINGS);
        tier2.add(Material.CHAINMAIL_BOOTS);
        tier1.add(Material.APPLE);
        tier1.add(Material.BREAD);
        tier1.add(Material.RAW_BEEF);
        tier1.add(Material.COOKED_BEEF);
        tier1.add(Material.RAW_CHICKEN);
        tier1.add(Material.COOKED_CHICKEN);
        tier2.add(Material.IRON_SWORD);
        tier2.add(Material.STONE_SWORD);
        tier1.add(Material.GOLD_HELMET);
        tier1.add(Material.GOLD_CHESTPLATE);
        tier1.add(Material.GOLD_LEGGINGS);
        tier1.add(Material.GOLD_BOOTS);
        tier2.add(Material.IRON_AXE);
        tier2.add(Material.APPLE);
        tier2.add(Material.BREAD);
        tier2.add(Material.RAW_BEEF);
        tier2.add(Material.COOKED_BEEF);
        tier2.add(Material.RAW_CHICKEN);
        tier2.add(Material.COOKED_CHICKEN);
        tier3.add(Material.DIAMOND_SWORD);
        tier3.add(Material.IRON_SWORD);
        tier3.add(Material.IRON_HELMET);
        tier3.add(Material.IRON_CHESTPLATE);
        tier3.add(Material.IRON_LEGGINGS);
        tier3.add(Material.IRON_BOOTS);
        tier3.add(Material.DIAMOND_AXE);
        tier3.add(Material.APPLE);
        tier3.add(Material.BREAD);
        tier3.add(Material.COOKED_BEEF);
        tier3.add(Material.RAW_BEEF);
        tier3.add(Material.COOKED_CHICKEN);
        tier3.add(Material.RAW_CHICKEN);