C111123313121111121111331333133313331323232133313331312111133112221221   >>    C11112331312111112111133133313331333132323213331333131211113311222122   <<    C111123313121111121111331333133313331323232133313331312111133112221223   >>      C111123313121111121111331333133313331323232133313331312111133112221222   >>