C111123313331323113313331331121111331323132322333121111133313223313231123331   >>    C11112331333132311331333133112111133132313232233312111113331322331323112333   <<    C111123313331323113313331331121111331323132322333121111133313223313231123333   >>      C111123313331323113313331331121111331323132322333121111133313223313231123332   >>