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#include <fstream>
using namespace std;
ifstream fin("submultimi.in");
ofstream fout("submultimi.out");
int n, v[17];
void afisare(int k){
for (int i = 1; i <= k; i++)
fout << v[i] << " ";
fout << '\n';
}
bool check(int k){
if (v[k] < v[k - 1]) return 0;
for (int i = 1; i < k; i++)
if (v[i] == v[k]) return 0;
return 1;
}
void bk(int k){
for (int i = 1; i <= n; i++){
v[k] = i;
if (check(k)){
afisare(k);
bk(k + 1);
}
}
}
int main()
{
fin >> n;
bk(1);
return 0;
}