What will be the output when the following program is executed?

public class Recur{

public static void main(String [] args){

print(5);

}

public static void print(int n) {

if (n!=0){

print(n-1);

printNum(n);

System.out.println();

}

}

public static void printNum(int n){

if(n!=0){

printNum(n-1);

System.out.print(n+ n+ " ");

}

}

}