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#include <fstream>
#include <vector>
using namespace std;
ifstream fin("submultimi.in");
ofstream fout("submultimi.out");
int n;
vector<int>V;
void back(int p);
bool test(int p);
void print(int p);
int main()
{
fin >> n;
V.resize(n + 5);
back(1);
fin.close();
fout.close();
return 0;
}
void back(int p)
{
for (int i = 1; i <= n; ++i)
{
V[p] = i;
if(test(p))
{
print(p);
back(p + 1);
}
}
}
bool test(int p)
{
for (int i = 1; i < p; ++i)
if (V[i] >= V[p])
return false;
return true;
}
void print(int p)
{
for (int i = 1; i <= p; ++i)
fout << V[i] << " ";
fout << endl;
}