Start: Nov, 12, 2017 10:00:00
2017秋Python程序设计基础培训第二次作业
End: Nov, 19, 2017 12:00:00
Time elapsed:
Time remaining:
Problem_ID: A
Result: Accepted
Time: 83ms
Memory: 24300kB
Author: lijian3256
In contest: 1122 
ans = 0
for i in range(1,101):
    if i % 2 == 0 :
        ans += i
print(ans)