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#include <fstream>
using namespace std;
ifstream f ("combinari.in");
ofstream g ("combinari.out");
int n, k, fv[20], st[20];
void bk( int nivel )
{
if (nivel == k + 1)
{
for (int i=1; i<=k; i++)
{
g<<st[i]<<" ";
}
g<<'\n';
return;
}
for (int i = st[nivel-1] + 1 ; i <= n ; i++)
{
if (fv[i]==0)
{
fv[i]=1;
st[nivel]=i;
bk(nivel+1);
fv[i]=0;
}
}
}
int main ()
{
f>>n>>k;
bk(1);
return 0;
}