'''
    loops.py
    Jeff Ondich, 2013-01-05
    Updated for Python 3, 2019-01-04

    Demonstrates a few simple loops.
   
    Intended as the Python half of parallel examples in Python and
    Java. See Loops.java.
'''

print('Counting up with a while loop')
k = 0
while k < 5:
    print(k)
    k += 1

print('Counting up with a for/in loop')
for k in range(5):
    print(k)

print('Counting down with a for/in loop')
for k in range(5, 0, -1):
    print(k)