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#include <iostream>
#include <fstream>
using namespace std;
ifstream fin ("submultimi.in");
ofstream fout ("submultimi.out");
int n;
int sol[16];
void rec(int niv, int nxt){
sol[niv]=nxt;
for (int i=0; i<=niv; i++)
fout<<sol[i]<<' ';
fout<<'\n';
for (int i=nxt+1; i<=n; i++)
rec(niv+1, i);
}
int main()
{
fin>>n;
for (int i=1; i<=n; i++)
rec(0, i);
return 0;
}