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: E
Result: Accepted
Time: 132ms
Memory: 21432kB
Author: 18958087167
In contest: 1086 
s=str(raw_input())
print s.lower()