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: B
Result: Accepted
Time: 126ms
Memory: 21432kB
Author: 15258500717
In contest: 1086

#!/usr/bin/python
a=int(input())
i=0
while(a!=1):
	if a%2==0:
		a=a//2
		i=i+1
	else:
		a=a*3+1
		i=i+1
print i