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#include <iostream>
#include <fstream>
using namespace std;
ofstream fout("submultimi.out");
int a[20], n;
int Valid(int k)
{
int i;
for (i = 1; i < k; i++)
if (a[i] == a[k] || a[i] > a[k])
return 0;
return 1;
}
inline void Afis(int k)
{
int i;
for (i = 1; i <= k; i++)
fout << a[i] << " ";
fout << "\n";
}
void BK(int k)
{
int i;
for (i = 1; i <= n; i++)
{
a[k] = i;
if (Valid(k))
{
Afis(k);
BK(k + 1);
}
}
}
int main()
{
ifstream fin("submultimi.in");
fin >> n;
fin.close();
BK(1);
fout.close();
return 0;
}