C111123313121111121111331333133313331333112221211111133133313232332333131   >>    C11112331312111112111133133313331333133311222121111113313331323233233313   <<    C111123313121111121111331333133313331333112221211111133133313232332333133   >>      C111123313121111121111331333133313331333112221211111133133313232332333132   >>