C312312111133131212111133133313231333133313331333131211111333133313232321333221   >>    C31231211113313121211113313331323133313331333133313121111133313331323232133322   <<    C312312111133131212111133133313231333133313331333131211111333133313232321333223   >>      C312312111133131212111133133313231333133313331333131211111333133313232321333222   >>