import java.io.BufferedReader;
import java.io.FileReader;
import java.io.IOException;

class Main {
  public static void main(String[] args) {
    System.out.println("Hello world!");
    try (BufferedReader bafrcitac = new BufferedReader(new FileReader("in.txt"))) {
      String radka = bafrcitac.readLine();
      int pocet = Integer.parseInt(radka);
      for (int i = 0; i < pocet; i++) {
        radka = bafrcitac.readLine();
        String[] pulky = String.split(" ");
        System.out.println(Integer.toString(  Integer.parseInt(pulky[0]) * Integer.parseInt(pulky[1] )));
      }
    }
  }
}