// Demonstrate a two-dimensional array.  
class TwoD {  
  public static void main(String[] args) {  
    int t, i; 
    int table[][] = new int[3][4];  
  
    for(t=0; t < 3; ++t) {  
      for(i=0; i < 4; ++i) {  
        table[t][i] = (t*4)+i+1;  
        System.out.print(table[t][i] + " ");  
      }  
      System.out.println(); 
    }  
  } 
}