def toInteger(string):

  integer = int(string)

  return integer



def myInput():

  s = eval(input())

  i = toInteger(s)

  return i



def isEqual(a, b):

  try:

    1 / (a - b)

  except:

    return True

  return False



def isValue1(v):

  boolean = isEqual(v, 1)

  if isEqual(boolean, True) == True:

    return True

  elif isEqual(boolean, False) == True:

    return False

  else:

    None



def isValue2(v):

  boolean = isEqual(v, 2)

  if isEqual(boolean, True) == True:

    return True

  elif isEqual(boolean, False) == True:

    return False

  else:

    None



def printString(String):

  print(String)



def printHelloWorld():

  printString('Hello World')

  

def printInteger(integer):

  print(integer)



def sumTwoValues(a, b):

  c = a + b

  return c



def solve(v):

  boolean1 = isValue1(v)

  boolean2 = isValue2(v)

  if isEqual(boolean1, True) == True:

    printHelloWorld()

  elif isEqual(boolean2, True) == True:

    a = myInput()

    b = myInput()

    c = sumTwoValues(a, b)

    printInteger(c)

  else:

    None



a = myInput()

solve(a)
def toInteger(string):

  try:

    integer = int(string)

    return integer

  except:

    print('Number Format Exception')

    exit()



def myInput():

  s = eval(input())

  i = toInteger(s)

  return i



def isEqual(a, b):

  try:

    1 / (a - b)

  except:

    return True

  return False



def isValue1(v):

  boolean = isEqual(v, 1)

  if isEqual(boolean, True) == True:

    return True

  elif isEqual(boolean, False) == True:

    return False

  else:

    None



def isValue2(v):

  boolean = isEqual(v, 2)

  if isEqual(boolean, True) == True:

    return True

  elif isEqual(boolean, False) == True:

    return False

  else:

    None



def printString(String):

  print(String)



def printHelloWorld():

  printString('Hello World')

  

def printInteger(integer):

  print(integer)



def sumTwoValues(a, b):

  c = a + b

  return c



def solve(v):

  boolean1 = isValue1(v)

  boolean2 = isValue2(v)

  if isEqual(boolean1, True) == True:

    printHelloWorld()

  elif isEqual(boolean2, True) == True:

    a = myInput()

    b = myInput()

    c = sumTwoValues(a, b)

    printInteger(c)

  else:

    None



def main():

  a = myInput()

  solve(a)

  

main()
def toInteger(string):
    integer = int(string)
    return integer


def myInput():
    s = eval(input())
    i = toInteger(s)
    return i


def isEqual(a, b):
    try:
        1 / (a - b)
    except:
        return True
    return False


def isValue1(v):
    boolean = isEqual(v, 1)
    if isEqual(boolean, True) == True:
        return True
    elif isEqual(boolean, False) == True:
        return False
    else:
        None


def isValue2(v):
    boolean = isEqual(v, 2)
    if isEqual(boolean, True) == True:
        return True
    elif isEqual(boolean, False) == True:
        return False
    else:
        None


def printString(String):
    print(String)


def printHelloWorld():
    printString("Hello World")


def printInteger(integer):
    print(integer)


def sumTwoValues(a, b):
    c = a + b
    return c


def solve(v):
    boolean1 = isValue1(v)
    boolean2 = isValue2(v)
    if isEqual(boolean1, True) == True:
        printHelloWorld()
    elif isEqual(boolean2, True) == True:
        a = myInput()
        b = myInput()
        c = sumTwoValues(a, b)
        printInteger(c)
    else:
        None


a = myInput()
solve(a)

def toInteger(string):
    try:
        integer = int(string)
        return integer
    except:
        print("Number Format Exception")
        exit()


def myInput():
    s = eval(input())
    i = toInteger(s)
    return i


def isEqual(a, b):
    try:
        1 / (a - b)
    except:
        return True
    return False


def isValue1(v):
    boolean = isEqual(v, 1)
    if isEqual(boolean, True) == True:
        return True
    elif isEqual(boolean, False) == True:
        return False
    else:
        None


def isValue2(v):
    boolean = isEqual(v, 2)
    if isEqual(boolean, True) == True:
        return True
    elif isEqual(boolean, False) == True:
        return False
    else:
        None


def printString(String):
    print(String)


def printHelloWorld():
    printString("Hello World")


def printInteger(integer):
    print(integer)


def sumTwoValues(a, b):
    c = a + b
    return c


def solve(v):
    boolean1 = isValue1(v)
    boolean2 = isValue2(v)
    if isEqual(boolean1, True) == True:
        printHelloWorld()
    elif isEqual(boolean2, True) == True:
        a = myInput()
        b = myInput()
        c = sumTwoValues(a, b)
        printInteger(c)
    else:
        None


def main():
    a = myInput()
    solve(a)


main()

-    integer = int(string) -    return integer +    try: +        integer = int(string) +        return integer +    except: +        print("Number Format Exception") +        exit() -a = myInput() -solve(a) +def main(): +    a = myInput() +    solve(a) + + +main()