C111123313121111121111331323133313331333132333133313331323222222121   >>    C11112331312111112111133132313331333133313233313331333132322222212   <<    C111123313121111121111331323133313331333132333133313331323222222123   >>      C111123313121111121111331323133313331333132333133313331323222222122   >>