#include<bits/stdc++.h> using namespace std; int len,id; string s; map<int,int>mp; int main(){ // freopen("operator.in","r",stdin); // freopen("operator.out","w",stdout); cin>>len; cin>>s; for(int i=0;i<len;i++)if(s[i]=='*'||s[i]=='/')mp[i]=++id; for(int i=0;i<len;i++)if(s[i]=='+'||s[i]=='-')mp[i]=++id; for(int i=0;i<len;i++){ if(isdigit(s[i]))cout<<s[i]; else cout<<s[i]<<'['<<mp[i]<<']'; } // fclose(stdin); // fclose(stdout); return 0; }