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#include <fstream>
using namespace std;
ifstream fin("submultimi.in");
ofstream fout("submultimi.out");
int n,sol[20];
bool ok(int k){
for (int i=1; i<k; ++i)
if (sol[i]>=sol[k]) return false;
return true;
}
void afis(int k){
for (int i=1; i<=k; ++i)
fout<<sol[i]<<" ";
fout<<endl;
}
void BK(int k){
for(int i=1; i<=n; ++i) {
sol[k]=i;
if (ok(k)) {
afis(k);
BK(k+1);
}
}
}
int main()
{
fin>>n;
BK(1);
return 0;
}