'''
Create function that simulates a coin flip. Each time the function is called,
it should randomly select either heads or tails and print it out.
'''
import random
#from time import sleep
def coin_flip():
    flip=random.randint(0,1)
    if flip==1:
        print('heads')
    else: print('tails')

'''
While True:
    coin_flip()
    sleep(1)
'''
#or:
for number in range(10):
    coin_flip()