Preview:
import java.io.*;
import java.util.*;

class GFG {

	
	static void fun1(int n)
	{
		if(n == 0)
			return;

		System.out.println("GFG");

		fun1(n - 1);
	}
    public static void main(String [] args) 
    {
        fun1(2);
    }

}
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