C111123313121111121111331333133313331323221211113313331121112321231   >>    C11112331312111112111133133313331333132322121111331333112111232123   <<    C111123313121111121111331333133313331323221211113313331121112321233   >>      C111123313121111121111331333133313331323221211113313331121112321232   >>