C313212111133131211331333133313331333133313231333133313331333133313233123232331   >>    C31321211113313121133133313331333133313331323133313331333133313331323312323233   <<    C313212111133131211331333133313331333133313231333133313331333133313233123232333   >>      C313212111133131211331333133313331333133313231333133313331333133313233123232332   >>