code: def caesar_cipher(s, k):
      result = ""
      for char in s:
          n = ord(char)
          if 64 < n < 91:
              n = ((n - 65 + k) % 26) + 65
          if 96 < n < 123:
              n = ((n - 97 + k) % 26) + 97
          result = result + chr(n)
      return result
  
label_desc: Use image node_id 1 for calling a global function with example usage: caesar_cipher(s, k) and returns: result