# https://www.globalsino.com/ICs/page4853.html
# Represents a variable in looping

for _ in range(5):
    print(_)

print ('\n')

Countries = ["USA", "Canada", "Italy", "Germany"]
for _ in Countries:
    print(_)

print ('\n')

_ = 6
while _ < 12:
    print(_, end = ' ' + '\n') 
    _ += 1