dc_base

lifespan = 80
age = int(input('Enter your age: '))

# Ask if they smoke. Notice that this is not int(input()) because we're not asking for a number.
smokes = input('Do you smoke? (Y/N): ').strip().upper()

# If they answered Y, they lose 10 years. Otherwise they lose 0 years.
if smokes == 'Y':
  smoking_factor = 10
else:
  smoking_factor = 0

remaining = lifespan - age - smoking_factor
print(f'You have {remaining} years left to live.')