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#include <fstream>
using namespace std;
ifstream f ("submultimi.in");
ofstream g ("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++)
g<<sol[i]<<" ";
g<<'\n';
}
void Back(int k){
int i;
for (i=1;i<=n;i++){
sol[k]=i;
if (ok(k)){
afis(k);
Back(k+1);
}
}
}
int main()
{
f>>n;
Back(1);
return 0;
}