C111112111133131121133133313331333132313113313331333121111332233132211   >>    C11111211113313112113313331333133313231311331333133312111133223313221   <<    C111112111133131121133133313331333132313113313331333121111332233132213   >>      C111112111133131121133133313331333132313113313331333121111332233132212   >>