C111123313121111121111331323133313331333132322121111133313112211221   >>    C11112331312111112111133132313331333133313232212111113331311221122   <<    C111123313121111121111331323133313331333132322121111133313112211223   >>      C111123313121111121111331323133313331333132322121111133313112211222   >>