#include<bits/stdc++.h> using namespace std; int n,num1=1,num2=1; char x[1000005]; int main(){ //freopen("operator.in","r",stdin); //freopen("operator.out","w",stdout); scanf("%d",&n); scanf("%c",&x[1]); for(int i=1;i<=n;i++){ scanf("%c",&x[i]); } for(int i=1;i<=n;i++){ if(x[i]=='*'||x[i]=='/'){ num2++; } } for(int i=1;i<=n;i++){ printf("%c",x[i]); if(x[i]=='*'||x[i]=='/'){ cout<<'['<<num1<<']'; num1++; }else if(x[i]=='+'||x[i]=='-'){ cout<<'['<<num2<<']'; num2++; } } return 0; }