C111123313121111121111331323133313233313232233132313331323311211   >>    C11112331312111112111133132313331323331323223313231333132331121   <<    C111123313121111121111331323133313233313232233132313331323311213   >>      C111123313121111121111331323133313233313232233132313331323311212   >>