C313212111133131211331333133313331333132212113313331323233111121   >>    C31321211113313121133133313331333133313221211331333132323311112   <<    C313212111133131211331333133313331333132212113313331323233111123   >>      C313212111133131211331333133313331333132212113313331323233111122   >>