#include<iostream>
#include<vector>
using namespace std;
void allIndices(int *arr,vector<int> &indi,int n,int key,int i){
	//base case
	if(i==n){
		return;
	}
 
	//recursive case 
	if(key == arr[i]){
		indi.push_back(i);
	}
	allIndices(arr,indi,n,key,i+1);
}
int main() {
	int n;
	cin>>n;
	int arr[n];
	for(int i=0; i<n; i++)
		cin>>arr[i];
	int key;
	cin>>key;
	vector<int> indi;
	indi.reserve(n);
	allIndices(arr,indi,n,key,0);
	for(int i: indi)
		cout<<i<<" ";
	return 0;
}

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