#虽然有点复杂,但也搞出来了 while True: try: s = input() res = [] for i in range(len(s)): if i == 0 and s[i].isdigit() and not s[i + 1].isdigit(): res.append('*') res.append(s[i]) res.append('*') elif i == 0 and s[i].isdigit() and s[i + 1].isdigit(): res.append('*') res.append(s[i]) elif i == len(s) - 1 and s[i].isdigit() and not s[i -1].isdigit(): res.append('*') res.append(s[i]) res.append('*') elif i == len(s) - 1 and s[i].isdigit() and s[i -1].isdigit(): res.append(s[i]) res.append('*') elif s[i].isdigit() and not s[i-1].isdigit() and not s[i+1].isdigit() and i != len(s) - 1 and i != 0: res.append('*') res.append(s[i]) res.append('*') elif s[i].isdigit() and not s[i-1].isdigit() and s[i+1].isdigit() and i != len(s) -1 and i != 0: res.append('*') res.append(s[i]) elif s[i].isdigit() and s[i-1].isdigit() and not s[i+1].isdigit() and i != 0: res.append(s[i]) res.append('*') else: res.append(s[i]) print(''.join(res)) except: break