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

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

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