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import java.util.Scanner;
public class Abid {
	public static void main (String [] args){
		Scanner input = new Scanner(System.in);
		System.out.print("Enter a 4 digit no. : ");
		int num = input.nextInt();
		int firstdigit = (num%10000)/1000;
		int seconddigit = (num%1000)/100;
		int thirdigit = (num%100)/10;
		int fourthdigit = (num%10)/1;
		
		System.out.println(firstdigit);
		System.out.println(seconddigit);
		System.out.println(thirdigit);
		System.out.println(fourthdigit);
		
	}
}
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