C111123313121111121111331333133313331323232133313331333132312323132313111   >>    C11112331312111112111133133313331333132323213331333133313231232313231311   <<    C111123313121111121111331333133313331323232133313331333132312323132313113   >>      C111123313121111121111331333133313331323232133313331333132312323132313112   >>