C313212111133131211331333133313331333133313231333133313331333132313331311313211   >>    C31321211113313121133133313331333133313331323133313331333133313231333131131321   <<    C313212111133131211331333133313331333133313231333133313331333132313331311313213   >>      C313212111133131211331333133313331333133313231333133313331333132313331311313212   >>