trung kien
@kienbeo90
Viet Nam, Nam Äáťnh
Joined Apr 2015
World Rank: #34730 (0.7 points)
I'm an IT teacher
Activity over the last year
Effectiveness
- Problems solved
- 16
- Solutions submitted
- 21
Viet Nam, Nam Äáťnh
Joined Apr 2015
World Rank: #34730 (0.7 points)
I'm an IT teacher