C313212111113331323312111133133313331333133313331333133313231313211   >>    C31321211111333132331211113313331333133313331333133313331323131321   <<    C313212111113331323312111133133313331333133313331333133313231313213   >>      C313212111113331323312111133133313331333133313331333133313231313212   >>