C313212111133131211331333133313331333133313331333133313331333132211223221   >>    C31321211113313121133133313331333133313331333133313331333133313221122322   <<    C313212111133131211331333133313331333133313331333133313331333132211223223   >>      C313212111133131211331333133313331333133313331333133313331333132211223222   >>