C132233133112121111331333133313231333133313231323223313232212333321   >>    C13223313311212111133133313331323133313331323132322331323221233332   <<    C132233133112121111331333133313231333133313231323223313232212333323   >>      C132233133112121111331333133313231333133313231323223313232212333322   >>