C31231211113313121211113313331333132233132322331323133313231323222311   >>    C3123121111331312121111331333133313223313232233132313331323132322231   <<    C31231211113313121211113313331333132233132322331323133313231323222313   >>      C31231211113313121211113313331333132233132322331323133313231323222312   >>