C313212111133131211331333133313331333133313231333133313331323133313123223321   >>    C31321211113313121133133313331333133313331323133313331333132313331312322332   <<    C313212111133131211331333133313331333133313231333133313331323133313123223323   >>      C313212111133131211331333133313331333133313231333133313331323133313123223322   >>