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#include <fstream>
using namespace std;
ifstream is("combinari.in");
ofstream os("combinari.out");
int n, p, x[9];
bool s[9];
void Comb(int k);
void Write(int k);
int main()
{
is >> n >> p;
Comb(1);
is.close();
os.close();
return 0;
}
void Comb(int k)
{
if(k > p)
{
Write(k-1);
return;
}
for(int i = x[k-1] + 1; i <= n; ++i)
{
x[k] = i;
if(!s[i])
{
s[i] = true;
Comb(k+1);
s[i] = false;
}
}
}
void Write(int k)
{
for(int i =1; i <= k; ++i)
os << x[i] << ' ';
os << '\n';
return ;
}