import java.util.*;
class linearSearch
{
    public static void main(String[] args) 
    {
        linearSearch obj = new linearSearch() ;
        Scanner sc = new Scanner(System.in) ;
   
        System.out.println("Enter the no. of entries to be made") ;
        int n = sc.nextInt() ;
   
        int arr[] = new int[n] ;
   
        System.out.println("Enter "+n+" numbers !") ;
        for(int i=0;i< n;i++)
        arr[i] = sc.nextInt() ;
   
        System.out.println("Enter the number to be searched");
        int num = sc.nextInt() ;
        obj.checkForEntry(arr,num);          
    }
   
    public void checkForEntry(int arr[],int num)
    {     
        int flag = -1 ;
        for(int j=0;j< arr.length-1;j++)
        {
            if(arr[j]==num)
            {
                flag = j ;
                j = arr.length ;
            }
        }
   
        if(flag==-1)
        System.out.println("No such element found") ;
   
        else
        System.out.println("Number found at index : "+flag) ;
       }
    }