import java.util.*;
import java.util.Scanner;
public class lab4 {
	public static void main(String args[]) {
 Scanner input=new Scanner(System.in);
 System.out.println("Enter size of the array : ") ;
 int size=input.nextInt();
 int [] arr=new int[size] ;
 for (int i=0;i<arr.length;i++) {
	System.out.println("Enter value of  number "+ ++i) ;
	arr[i]=input.nextInt();
 }
 System.out.println("Enter the number you want to search for:  ");
 int x=input.nextInt();
 int index=linearSearch(arr,x);
 if(index==-1) {
	 System.out.println("Number is not found.");
 }
 else {
	 System.out.println("The number in index "+index+".");
 }
	}
 

public static  int linearSearch(int arr[],int x) {
	for(int i=0;i<arr.length;i++) {
		if(arr[i]==x) {
			return i;
		}
	}
	return -1;
} }