Start: Apr, 17, 2017 10:00:00
Python程序设计基础培训第二次作业
End: Apr, 23, 2017 14:00:00
Time elapsed:
Time remaining:
Problem_ID: A
Result: Accepted
Time: 111ms
Memory: 21432kB
Author: 18989454199
In contest: 1086 
#!/usr/bin/python
#-*-coding:utf-8-*-

s=0
for i in range(2,102,2):
  s=s+i
print s