public class arr_output 
    {
        public static void main(String args[]) 
        {
            int arr_var[][] = {{ 1, 2, 3, 4}, { 4 , 5, 6, 7}, { 7, 8, 9, 10}};
            int sum = 0;
            for (int i = 0; i < 3; ++i)
            {
                for (int j = 0; j <  3 ; ++j)
                {
                    sum = sum + arr_var[i][j];
                }
            }
            System.out.print(sum / 2);
        } 
    }