#include <bits/stdc++.h>   using namespace std;   int main() {     string s;     while (cin >> s) {       string integer;       string decimal;       bool isnegative = false;       bool isdecimal = false;       int pos = 0;       if (s[0] ==  - ) {         isnegative = true;         pos++;       }       for (; pos < s.size(); pos++) {         if (s[pos] ==  . ) {           isdecimal = true;         } else if (!isdecimal) {           integer += s[pos];         } else {           decimal += s[pos];         }       }       reverse(integer.begin(), integer.end());       string integerWithComma;       for (int i = 0; i < integer.size(); i++) {         integerWithComma += integer[i];         if (i != integer.size() - 1 && i % 3 == 2) {           integerWithComma +=  , ;         }       }       reverse(integerWithComma.begin(), integerWithComma.end());       string decimalProcess;       if (decimal.size() == 0) {         decimalProcess =  .00 ;       } else if (decimal.size() == 1) {         decimalProcess =  .  + decimal +  0 ;       } else {         decimalProcess =  .  + decimal.substr(0, 2);       }       if (isnegative) {         cout <<  ( ;       }       cout <<  $ ;       cout << integerWithComma;       cout << decimalProcess;       if (isnegative) {         cout <<  ) ;       }       cout << endl;     }     return 0;   }   