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#include <bits/stdc++.h>
using namespace std;
ifstream fin("submultimi.in");
ofstream fout("submultimi.out");
int v[18], x[18];
int n, cnt ;
bool egale(int k){
for(int i = 1; i < k; ++i){
if(v[k] <= v[i]) return false;
}
return true;
}
void afis(int k){
for(int i = 1; i <= k; ++i)
fout << v[i] << " ";
fout << '\n';
}
void backtr(int k){
for(int i = 1; i <= n; ++i){
v[k] = i;
if(egale(k)){
afis(k);
backtr(k + 1);
}
}
}
int main(){
fin >> n;
backtr(1);
return 0;
}