#include <stdio.h>
#include <stdlib.h>
 
int no_search(int a[],int n,int x);
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);
	for(i=0; i<ans; i++){
		scanf("%d",a[i]);
		if(a[ans]==NULL){
			printf("ERROR\n");
			return -1;
		}
	}
 
	no_search(a,n,x);
	if(ans!=-1) printf("%d\n",a[ans]);
	else printf("not found");
	free(a);
	return 0;
}
 

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