C111123313121111121111331333132313331323133313331323223313331333212311   >>    C11112331312111112111133133313231333132313331333132322331333133321231   <<    C111123313121111121111331333132313331323133313331323223313331333212313   >>      C111123313121111121111331333132313331323133313331323223313331333212312   >>