C111112111133131121133133313331333133313331323133313331333133313113313133111231   >>    C11111211113313112113313331333133313331333132313331333133313331311331313311123   <<    C111112111133131121133133313331333133313331323133313331333133313113313133111233   >>      C111112111133131121133133313331333133313331323133313331333133313113313133111232   >>