# l1 = [1, 2, 3]
# l2 = [i*2 for i in l1]
# print (l2)

# l1 = [1, 2, 3]
# s = 0
# for i in l1:
#    s += i**2
# print (s)

# time = 11.8
# lit = int(time // 2)
# lit = time // 2
#
# print (f'litres = {lit}')

s = 'Hello word'
if ' ' in s:
    s = s.upper()
else:
    s = s.lower()
print(s)
