using System;
using System.Collections.Generic;  // for Stack<T> structure

// program to determine if a string with []'s and () match.
public class temp {

  static bool match_brackets(string s) {
     var mystack = new Stack<char>();
     foreach (char c in s) {
       if (c=='(' || c == '[') mystack.Push(c);
       if (c==')' || c == ']') {
         char d = mystack.pop();
         if ((d=='(' && c==']') || (d=='[' && c==')')) return false; 
       }// match right bracket against left bracket on stack
     }//foreach
          
  }//match_brackets
}