C111123313121111121111331333133313331311331323133313331211113313331333132321221   >>    C11112331312111112111133133313331333131133132313331333121111331333133313232122   <<    C111123313121111121111331333133313331311331323133313331211113313331333132321223   >>      C111123313121111121111331333133313331311331323133313331211113313331333132321222   >>