#include <iostream>
#include <vector>
#include <fstream>
using namespace std;
int main (void)
{
	ifstream ins("p88.txt");
	ofstream ous("ans88.txt");
	int n;
	ins >> n;
	vector <int> a;
	for (int i=0; i<n; i++)
	{int t;
	ins >> t;
	a.push_back(t);
	}
	vector <int> mas;
	for (int i=0; i<n; i++)
		if (a[i]%7 == 0)
			mas.push_back(i);
	for (int i=0; i<mas.size(); i++)
		ous << mas[i] << " ";
	ins.close();
	ous.close();
}