print("Select a task from 1 - 5")
task =int(input())
if task == 1:
  print("Task 1")
  print("---------------")
  age =int(input("How old are you? "))
  
  if age >= 65:
    print("You're old aka retired")
  else:
    if age > 18:
      print("Work harder")
    else:
      print("You're a child. Do nothing")
elif task == 2:  
  print("---------------")
  print("Task 2")
  print("---------------")
  age =int(input("For real, How old are you? "))
  if age >= 65 :
    print("You're old aka retired")
  elif age > 18:
    print("Work harder")
  else:
    print("You're a child. Do nothing")
    
elif task == 3:
  print("---------------")
  print("Task 3")
  print("---------------")
  
  month = int(input("Enter the current month in number: "))
  print("As in Jan = 1, Feb = 2......")
  print("Option 1")
  if month >= 1 and month <=3:
    print("It's summer. Enjoy the heat")
  elif month >3 and month <=6:
    print("It's autumn. ")
  elif month >6 and month <=9:
    print("It's winter. Why is it so cold?")
  elif month >9 and month <=12:
    print("It's spring")
  else:
    print("Invalid month")
  
  print("Option 2")
  if month >= 1 and month <=2 or month == 12:
    print("It's summer. Enjoy the heat")
  elif month >2 and month <=5:
    print("It's autumn. ")
  elif month >5 and month <=8:
    print("It's winter. Why is it so cold?")
  elif month >8 and month <=11:
    print("It's spring")
  else:
    print("Invalid month")

elif task == 4:
  print("---------------")
  print("Task 4")
  print("---------------")
  score =int(input("What's your grade: "))
  if score >= 90 and score <=100 :
    print("A")
  elif score >= 80 and score <90:
    print("B ")
  elif score >= 70 and score <80:
    print("C")
  elif score >= 60 and score <70:
    print("D")
  elif score >= 50 and score <60:
    print("E")
  elif score >= 0 and score <50:
    print("FAIL!")
  else:
    print("Invalid score")

elif task == 5:
  print("---------------")
  print("Task 5")
  print("---------------")
  
  num1 =int(input("Enter an integer: "))
  num2 =int(input("Enter an integer again: "))
  print("-----------MENU-----------")
  print("1 - Add the numbers")
  print("2 - Subtract the second number from the first number")
  print("3 - Multiply the numbers")
  option =int(input("Enter your selection: "))
  if option == 1:
    total = num1 + num2
    print("Total number is = ", total)
  elif option == 2:
    sub = num1 - num2
    print("Sub number is = ", sub)
  elif option == 3:
    mul = num1 * num2
    print("Mult = ", mul)
  else:
    print("Invalid option")