题解 | #表示数字#

ss=input()
a='*'+ss[0] if ord('0')<=ord(ss[0])<=ord('9') else ss[0]
for s in ss[1:]:
    if ord('0')<=ord(s)<=ord('9'):
        if ord('0')<=ord(a[-1])<=ord('9'):
            a+=s
        else:
            a+='*'+s
    else:
        if ord('0')<=ord(a[-1])<=ord('9'):
            a+='*'+s
        else:
            a+=s
if ord('0')<=ord(a[-1])<=ord('9'):
    a+='*'
print(a)