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#include <fstream>
#include <algorithm>
using namespace std;
int n, x[1100], j, i, maxim, s[11], sol[13], nr, m, k;
int v[11], a;
char ok;
ifstream fin("submultimi.in");
ofstream fout("submultimi.out");
void back(int niv){
for(int i=x[niv-1]+1;i<=n;i++){
x[niv]=i;
for(int i=1;i<=niv;i++)
fout<<x[i]<<" ";
fout<<"\n";
if(niv<n){
back(niv+1);
}
}
}
int main(){
fin>>n;
x[0]=0;
back(1);
return 0;
}