Pet level requirement sums

        List< ItemStack > stacks = Level.getLevelItemRequirements( 25 );
        for ( int i = 24; i >= 2; --i )
        {
            List< ItemStack > add = Level.getLevelItemRequirements( i );
            for ( ItemStack toAdd : add )
            {
                for ( ItemStack original : stacks )
                {
                    if ( toAdd.getItem() == original.getItem() )
                    {
                        original.stackSize += toAdd.stackSize;
                    }
                }
            }
        }

        System.out.println( "Pet level req. totals:" );
        for ( ItemStack stack : stacks )
        {
            System.out.println( stack );
        }