C312312111133131121333133313113313331333133313331333133313231333132312111   >>    C31231211113313112133313331311331333133313331333133313331323133313231211   <<    C312312111133131121333133313113313331333133313331333133313231333132312113   >>      C312312111133131121333133313113313331333133313331333133313231333132312112   >>