public class multidimention_arr
    {
        public static void main(String args[])
        {
            int array[][] = new int[5][5];
            array[0] = new int[1];
            array[1] = new int[2];
            array[2] = new int[3];               
	    int sum = 0;
	    for (int i = 0; i < 5; ++i) 
	    {
	        for (int j = 0; j < i + 1; ++j)
	        {
                    array[i][j] = j + 1;
	        }
	    }
	    for (int i = 0; i < 5; ++i) 
	    {
	        for (int j = 0; j < i + 1; ++j)
	        {
                    sum = sum + array[i][j];
	        }
	    }
	    System.out.print(sum); 	
        } 
    }