C111123313121111121111331333131211113313231323331322331323133313123311   >>    C11112331312111112111133133313121111331323132333132233132313331312331   <<    C111123313121111121111331333131211113313231323331322331323133313123313   >>      C111123313121111121111331333131211113313231323331322331323133313123312   >>