age = 19

print(age < 21)
print(age > 21)
print(age >= 21)
print(age <= 21)

print('''
-------------
''')

age_0 = 22
age_1 = 18
print(age_0 >= 21 and age_1 >= 21)

age_1 = 30
print(age_0 >= 21 and age_1 >= 21)