mortgage_calculator(loan_amount=350000, interest_rate=0.035, loan_period=30)
mortgage_calculator(loan_amount=500000, interest_rate=0.04, loan_period=20)
mortgage_calculator(loan_amount=750000, interest_rate=0.025, loan_period=15)
mortgage_calculator(loan_amount=1000000, interest_rate=0.03, loan_period=10)