C312312111133131212111133133313231333133313331322133313232113213221   >>    C31231211113313121211113313331323133313331333132213331323211321322   <<    C312312111133131212111133133313231333133313331322133313232113213223   >>      C312312111133131212111133133313231333133313331322133313232113213222   >>