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#include <iostream>
#include <string>

using namespace std;

int main() {

    string delimiter = "=";
    string request_uri = getenv("QUERY_STRING");
    string key_val = request_uri;
    string token = key_val.substr(0, key_val.find(delimiter));
    cout << "Content-type:text/html\r\n\r\n";
    cout << "<html>\n";
    cout << "<head>\n";
    cout << "<title>Hello World - First CGI Program</title>\n";
    cout << "</head>\n";
    cout << "<body>\n";
    cout << "token:\t\n" + token << "\n" << endl;
    cout << "Referrer:\t\n" << getenv("HTTP_REFERER") <<  "\n" << endl;
    cout << "QUERY_STRING:\t\n" +request_uri << "\n" <<  endl;
    cout << "<h2>Hello World! This is my first CGI program</h2>\n";
//    cout << "<script>alert(1)</script>";

    cout << "</body>\n";
    cout << "</html>\n";


    return 0;
}