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#include <iostream>
#include <fstream>
#define NMAX 20
using namespace std;
int N,M,x[NMAX],viz[NMAX];
void bkt(int k)
{
if(k==M+1)
{
for(int i=1; i<=M; i++)
cout<<x[i]<<' ';
cout<<'\n';
}
else
for(int i=x[k-1]+1; i<=N; i++)
if(!viz[i])
{
x[k]=i;
viz[i]=1;
bkt(k+1);
viz[i]=0;
}
}
int main()
{
freopen("submultimi.in","rt",stdin);
freopen("submultimi.out","wt",stdout);
cin>>N;
for(M=1;M<=N;M++)
bkt(1);
}