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#include <bits/stdc++.h>
using namespace std;
ifstream fin("submultimi.in");
ofstream fout("submultimi.out");
int n, sub[20];
void afis() {
for(int i=1; i<=n; i++) {
if(sub[i]!=0) {
fout << sub[i] << " ";
}
}
fout << "\n";
}
void bktr(int k) {
if(k==n+1) {
return;
}
for(int i=sub[k-1]+1; i<=n; i++) {
sub[k]=i;
afis();
bktr(k+1);
sub[k]=0;
}
}
int main()
{
fin >> n;
bktr(1);
return 0;
}