C111123313121111121111331333133313331311331323133313331211113313331323223323321   >>    C11112331312111112111133133313331333131133132313331333121111331333132322332332   <<    C111123313121111121111331333133313331311331323133313331211113313331323223323323   >>      C111123313121111121111331333133313331311331323133313331211113313331323223323322   >>