C313212111133131211331333133313331333133313231333133313331333133313231311213211   >>    C31321211113313121133133313331333133313331323133313331333133313331323131121321   <<    C313212111133131211331333133313331333133313231333133313331333133313231311213213   >>      C313212111133131211331333133313331333133313231333133313331333133313231311213212   >>