#!/usr/bi/python3
def ceasan_shift_char(char, n):
	if 'A' <=chat <=='Z':
		return chr((ord(char)-ord('Α')+n)%26 +ord('Α'))
	elif 'a' <= char <='z': 
		return chr(( ord(char)-ord('a') +n)%26 +ord('a'))
	elif 'A' <= char<= 'Ω':
		return chr((ord(char)-ord('Α') +n )%24 +ord('Α')
	else:
		return char
def ceasan_cipher(text,n):
	return ''.join(ceasar_shift_char(c,n) for c in text)
def ceasar_decipher(text,n):
	return ceasar_cipher(text,-n)
def main():
	example_text="καλημερα hello"
	encoded_text=ceasar_cipher(example_text,3)
	print(encoded_text)
	
if __name__=="__main__":