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#include <bits/stdc++.h>
using namespace std;
ifstream fin("submultimi.in");
ofstream fout("submultimi.out");
int solutie[20];
void bkt(int pos,int n)
{
if(pos>n)
{
int cnt=0;
for(int i=1;i<=n;i++)
if(solutie[i]==1)
cnt++;
if(cnt==0) return;
for(int i=1;i<=n;i++)
if(solutie[i]==1)
fout<<i<<" ";
fout<<"\n";
return;
}
for(int val=1;val<=2;val++)
{
solutie[pos]=val;
bkt(pos+1,n);
}
}
int main()
{
int n;
fin>>n;
bkt(1,n);
return 0;
}