C313212111133131211331333133313331333133313331322133313132323321   >>    C31321211113313121133133313331333133313331333132213331313232332   <<    C313212111133131211331333133313331333133313331322133313132323323   >>      C313212111133131211331333133313331333133313331322133313132323322   >>