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#include <iostream>
#include <fstream>
using namespace std;
ifstream fin("submultimi.in");
ofstream fout("submultimi.out");
int v[100], p, len, n;
void afisare(){
for(int i=0; i<len; i++)
fout<<v[i]<<" ";
fout<<'\n';
}
void bk(int pas, int n){
if(pas>n){
afisare();
return;
}
v[len]=pas;
len++;
bk(pas+1, n);
len--;
v[len]=0;
bk(pas+1, n);
}
int main()
{
fin>>n;
bk(1, n);
return 0;
}