#include <bits/stdc++.h> using namespace std; #define ll long long int main() { ios::sync_with_stdio(0); cin.tie(0); cout.tie(0); ll llN = 0; string strIn = ""; cin >> llN; cin >> strIn; ll llCnt = 0; for (ll i = 0; i < llN; i++) { if (('*' == strIn[i]) || ('/' == strIn[i])) { llCnt++; } } ll llCnt2 = 0; for (ll i = 0; i < llN; i++) { cout << strIn[i]; if (('*' == strIn[i]) || ('/' == strIn[i])) { llCnt2++; cout << "[" << llCnt2 << "]"; } else if (('+' == strIn[i]) || ('-' == strIn[i])) { llCnt++; cout << "[" << llCnt << "]"; } } return 0; }