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#include <iostream>
#include <vector>
#include <fstream>
using namespace std;
ifstream in("submultimi.in");
ofstream out("submultimi.out");
vector <int> st;
void afisare()
{
if(st.empty())
{
return;
}
for(int i = 0 ; i < st.size() ; i++)
{
out << st[i] <<" ";
}
out << "\n";
}
void bkt(int pas , int n)
{
if(pas > n)
{
afisare();
return;
}
bkt(pas+1 , n);
st.push_back(pas);
bkt(pas+1 , n);
st.pop_back();
}
int main()
{
int n;
in >> n;
bkt(1,n);
return 0;
}