#include <stdio.h>
#include <stdlib.h>

int no_search(int a[],int n,int x){
	return -1;
}

int main(void) {
	int n,x,y;
	int i;
	int *a;
	
	scanf("%d",&n);
	scanf("%d",&x);
	
	a = (int *)malloc(sizeof(int)*n);
	
	for(i=0;i<=n;i++){
		scanf("%d",&y);
		a[i] = y;
	}
	
	if(no_search(a,n,x) == -1)
	printf("not found\n");
}