def caesar_encrypt(text, shifting_letters):
 result = ''
 for char in text:
  if char.isalpha():
   shift = shifting_letters % 26
   base = ord('A') if char.isupper() else ord('a')
   new_char = chr(base + (ord(char) - base + shift) % 26)
   result += new_char
  else:
   result += char # Nicht-Buchstaben bleiben gleich
 return result

# Beispiel:
text = 'Hallo, Welt!'
shifting_letters = 3 # Verschiebung um 3 Buchstaben

encrypted_text = caesar_encrypt(text, shifting_letters)
print('Verschlüsselter Text:', encrypted_text)