#include <stdio.h>
#include <stdlib.h>
int liner_search(int n,int x,int a[]){
	int i;
	for(i=0;i<n;i++){
		if(a[i]==x){
			return i;
		}
	}
	return -1;
}
int main(void) {
	int n,x,i;
	int *a;
	int ans;
	scanf("%d %d",&n,&x);
	a=(int *)malloc(sizeof(int)*n);
	if(a==NULL){
		printf("ERROR\n");
		return 0;
	}
	for(i=0;i<n;i++){
		scanf("%d",&a[i]);
	}
	ans=liner_search(n,x,a);
	if(ans==-1){
		printf("見つかりませんでした");
	}else{
		printf("a[%d]=%d",ans,x);
	}
	return 0;
 
}
 

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