#include <bits/stdc++.h>   using namespace std;   string s;   int main() {     cin >> s;     bool ms = false;     string a;     string b;     if (s[0] ==  - ) ms = true;     bool flag = false;     bool p = ms;     for (int i = 0; i < s.size(); i++) {       if (p) {         p = false;         continue;       }       if (s[i] ==  . ) {         flag = true;         continue;       }       if (!flag)         a.push_back(s[i]);       else         b.push_back(s[i]);     }     int l = a.size();     if (ms) cout <<  ( ;     cout <<  $ ;     for (int i = 0; i < l; i++) {       if ((l - i) % 3 == 0 && i != 0) cout <<  , ;       cout << a[i];     }     cout <<  . ;     if (b.size() >= 2)       cout << b[0] << b[1];     else if (b.size() == 1)       cout << b[0] <<  0 ;     else       cout <<  00 ;     if (ms) cout <<  ) ;     return 0;   }   