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#include <fstream>
#include <iostream>
using namespace std;
ifstream fin("submultimi.in");
ofstream fout("submultimi.out");
int n, x[18], used[18];
int asc(int *v,int n)
{
for(int i=1;i<n;i++)
if(v[i]>=v[i+1])
return 0;
return 1;
}
void bkt(int p) {
if(p>n)return;
for(int i=1;i<=n;i++)
{
x[p]=i;
if(asc(x,p))
{
for(int i=1;i<=p;i++)
fout<<x[i]<<" ";
fout<<'\n';
}
bkt(p+1);
}
}
int main() {
fin >> n;
cout<<n;
bkt(1);
return 0;
}