C313212111133131211331333133313331333133313231333133313331333133313232212323111   >>    C31321211113313121133133313331333133313331323133313331333133313331323221232311   <<    C313212111133131211331333133313331333133313231333133313331333133313232212323113   >>      C313212111133131211331333133313331333133313231333133313331333133313232212323112   >>