while True: try: s = input() a = '' #剔除符号后的字符串 d = '' #结果 for i in s: if i.isalpha(): a += i news = sorted(a,key=str.lower) for i in range(len(s)): if s[i].isalpha(): d += news.pop(0) else: d += s[i] print(d) except: break