/** A class to print a multiplication table */
public class Math {
  public static final int BEG = 1, END = 19;	// the limits
  public static void main (String args []) {
    for (int i = BEG; i <= END; ++ i) {
      for (int j = BEG; j <= END; ++ j) {
        System.out.print(fmt(i*j));
        if (j < END) System.out.print(" ");
      }
      System.out.println();
    }
  }
  private static String fmt (int n) {
    if (n < 10) return "  "+n;
    if (n < 100) return " "+n;
    return ""+n;
  }
}