units = int(input(" Please enter Number of Units you Consumed : "))  if(units < 50):     amount = units * 2.60     surcharge = 25 elif(units <= 100):     amount = 130 + ((units - 50) * 3.25)     surcharge = 35 elif(units <= 200):     amount = 130 + 162.50 + ((units - 100) * 5.26)     surcharge = 45 else:     amount = 130 + 162.50 + 526 + ((units - 200) * 8.45)     surcharge = 75  total = amount + surcharge print("\nElectricity Bill = %.2f"  %total)