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#include <fstream>
#define cin fin
#define cout fout
using namespace std;
ifstream fin("combinari.in");
ofstream fout("combinari.out");
int n, m, x[100];
void afis()
{
for(int i = 1; i <= m; i++)
cout << x[i] << ' ';
cout << "\n";
}
void bt(int k)
{
if(k <= m)
for(int i = x[k - 1] + 1; i <= n - m + k; i++)
{
x[k] = i;
bt(k + 1);
}
else
afis();
}
int main()
{
cin >> n >> m;
bt(1);
return 0;
}