In [1]:

    

s = 'to/stairway/heaven'
s


    

    
Out[1]:





'to/stairway/heaven'

In [2]:

    

terms = s.split('/')
terms


    

    
Out[2]:





['to', 'stairway', 'heaven']

In [3]:

    

'to' in terms


    

    
Out[3]:





True

In [4]:

    

'to' in terms[1:]


    

    
Out[4]:





False

In [5]:

    

from collections import deque


    

In [6]:

    

d = deque(terms)
d


    

    
Out[6]:





deque(['to', 'stairway', 'heaven'])

In [7]:

    

while d:
    print(d)
    d.popleft()


    

    




deque(['to', 'stairway', 'heaven'])
deque(['stairway', 'heaven'])
deque(['heaven'])

In [8]:

    

import math


    

In [9]:

    

math.gcd(256, 10**6)


    

    
Out[9]:





64