s = input().strip() dashabi = [] for char in s: if 'a' <= char <= 'z': dashabi.append(char) if len(dashabi) == 4: break def shift_char(c): if c == 'z': return 'a' return chr(ord(c) + 1) shifted_dashabi = [shift_char(c) for c in dashabi] jieguo = ' '.join(shifted_dashabi) print(jieguo)