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#include <bits/stdc++.h>
using namespace std;
ifstream fin("submultimi.in");
ofstream fout("submultimi.out");
int n;
int v[20];
int verificare(int cnt)
{
for (int i=1;i<cnt;i++)
if (v[i]==v[cnt] || v[i]>v[cnt])
return 0;
return 1;
}
void backt(int cnt)
{
for (int i=1;i<=n;i++)
{
v[cnt]=i;
if (verificare(cnt))
{
if (cnt<=n)
{
for (int i=1;i<=cnt;i++)
{
fout<<v[i]<<" ";
}
fout<<'\n';
backt(cnt+1);
}
}
}
}
int main()
{
fin>>n;
backt(1);
return 0;
}