I cannot get two different input in the loop, howerver if at first I define int n = 1, it works [closed]

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I cannot get two different inputs in the loop, however if at first, I define int n = 1, it works

import java.util.Scanner;

public class Test 
{
 public static void main(String[] args)
 {
 Scanner Input = new Scanner(System.in);
 int n = Input.nextInt();
 while (n >= 1 && n <=5)
 {
 if (n == 1)
 {
 System.out.print("Enter a: ");
 String S1 = Input.nextLine();
 System.out.print("Enter b: ");
 String S2 = Input.nextLine();
 System.out.println(S1);
 System.out.print(S2);
 }
 System.out.println();
 n = Input.nextInt();
 }
 Input.close();
 }
}