solution
kuangyongjingquerenyuandingwei
kuangyongwuxiantongxinxitong
kuangyongguangbotongxinxitong
kuangyongpidaijikongxitong
meikuangbengfangjikongxitong
kuangyongjingquecheliangdingwei
kuangyonggongzuomiankongzhixitong
kuangyongdiaodutongxunxitong
kuangyonggongyehuanwangxitong
kuangyongshipinjiankongxitong
kuangyongrenyuandingweixitong
weixingongzhonghao
yidongduan
