C312312111133131212111133133313231333133313331323221211113331333221   >>    C31231211113313121211113313331323133313331333132322121111333133322   <<    C312312111133131212111133133313231333133313331323221211113331333223   >>      C312312111133131212111133133313231333133313331323221211113331333222   >>