text: 
  #include <iostream>
  #include <cmath>
  
  using namespace std;
  
  
  int main(){
  
  	cout << "{";
  
  	for (int i=2; i<200000; i++){
  	    for (int j=2; j*j<=i; j++){
  	        if (i % j == 0) 
  	            break;
  	        else if (j+1 > sqrt(i)) {
  	            cout << "," << i;
  	        }
  
  	    }  
  	}
  
  	cout << "}" << endl;
  }