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#include <fstream>
using namespace std ;
const int NMAX = 20 ;
const int INF = 0x3f3f3f3f ;
ifstream cin("submultimi.in") ;
ofstream cout("submultimi.out") ;
int A[NMAX], N;
void Back()
{
for(int i = 1 ; i <= A[0] ; ++ i)
cout << A[i] << ' ' ;
if(A[0])
cout << '\n' ;
for(int i = A[A[0]] + 1 ; i <= N ; ++ i)
{
A[++ A[0]] = i ;
Back() ;
A[A[0]] = 0 ;
A[0]--;
}
}
int main()
{
cin >> N ;
Back() ;
cin.close() ;
cout.close() ;
return 0 ;
}