def input_age(age):
try:
assert int(age) > 18
except ValueError:
return 'ValueError: Cannot convert into int'
else:
return 'Age is saved successfully'
print(input_age('23')) # This will print
print(input_age(25)) # This will print
print(input_age('nothing')) # This will raise ValueError which is handled
print(input_age('18')) # This will raise AssertionError, program collapses
print(input_age(43)) # This won't print