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#include <bits/stdc++.h>
using namespace std;
ifstream fin("submultimi.in");
ofstream fout("submultimi.out");
int n, v[17], s[17];
void afis(int k){
for(int i=1; i<=k; i++)
fout<<s[i]<<" ";
fout<<"\n";
}
void bkt(int k, int val){
for(int i=val; i<=n; i++){
if(!v[i]){
v[i] = 1;
s[k] = i;
afis(k);
if(k<n) bkt(k+1, i+1);
s[k] = 0;
v[i] = 0;
}
}
}
int main(){
fin>>n;
bkt(1, 1);
}