C313212111113331323312111133133313331333133313231333133313331333133313311222231   >>    C31321211111333132331211113313331333133313331323133313331333133313331331122223   <<    C313212111113331323312111133133313331333133313231333133313331333133313311222233   >>      C313212111113331323312111133133313331333133313231333133313331333133313311222232   >>