What should be the output ?

using System;
class Program { 
    static void Main(string[] args) 
    { 
        Program ex = new Program(); 
        ex.setData(10, 20); 
        ex.getData(); 
        Console.Read(); 
    } 
    int i; 
    int j; 
    public void setData(int i, int j) 
    { 
        i = i; j = j; 
    } 
    public void getData() 
    { 
        Console.WriteLine("i=" + i + " , j=" + j); 
    } 
}