C313212111133131211331333133313331333133313331333133313331333131121113112121   >>    C31321211113313121133133313331333133313331333133313331333133313112111311212   <<    C313212111133131211331333133313331333133313331333133313331333131121113112123   >>      C313212111133131211331333133313331333133313331333133313331333131121113112122   >>