input: Write a function to add two large numbers represented as strings. The function should return the sum of the two numbers as a string. The input numbers are provided as strings to handle large integers that exceed the typical range of standard data types.
  
  ### Example Implementation:
  def add_large_numbers(num1, num2):
      num1 = num1[::-1]
      num2 = num2[::-1] 
      carry = 0
      result = "" 
     
      # Iterate over the length of the length of larger string  
      for i in range(max(len(num1), len(num2))): 
          if i < len(num1):
              digit1 = int(num1[i])
          else:
              digit1 = 0
  
          if i < len(num2):
              digit2 = int(num2[i])
          else:
              digit2 = 0
         
          sum_total = digit1 + digit2 + carry  
          carry = sum_total // 10  
  
          result += str(sum_total % 10) 
  
      # Add remaining carry  
      if carry > 0:  
          result += str(carry) 
  
      return result[::-1]
  
  assert add_large_numbers("111", "1337") == "1448"
  assert add_large_numbers("999", "1") == "1000"
  assert add_large_numbers("123456789", "987654321") == "1111111110"
  assert add_large_numbers("", "") == "0"
  assert add_large_numbers("0", "0") == "0"
output: def add_large_numbers(num1, num2):
      num1 = num1[::-1]
      num2 = num2[::-1] 
      carry = 0
      result = "" 
     
      for i in range(max(len(num1), len(num2))): 
          if i < len(num1):
              digit1 = int(num1[i])
          else:
              digit1 = 0
  
          if i < len(num2):
              digit2 = int(num2[i])
          else:
              digit2 = 0
         
          sum_total = digit1 + digit2 + carry  
          carry = sum_total // 10  
  
          result += str(sum_total % 10) 
  
      if carry > 0:  
          result += str(carry) 
  
      return result[::-1]