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#include <fstream>
using namespace std;
ifstream f("submultimi.in");
ofstream g("submultimi.out");
int n, x[17];
void Afisare(int n) {
for(int i = 1; i <= n; i++)
g << x[i] << ' ';
g << '\n';
}
void Back(int k) {
for(int i = x[k - 1] + 1; i <= n; i++) {
x[k] = i;
Afisare(k);
Back(k + 1);
}
}
int main() {
f >> n;
Back(1);
f.close();
g.close();
return 0;
}