def payment(a,r,m):
  m = m/100
  p = (r*a)/(1-(1/(1+r)**(m)))

  return p



a = int(input("Enter the amount of the loan: "))
r = float(input("Enter the interest rate: "))
m = int(input("Number of months: "))

print("Payment amounth per month : ", payment(a,r,m))