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#include <bits/stdc++.h>
using namespace std;
ifstream f("combinari.in");
ofstream g("combinari.out");
int n;
int x[17];
void afisare(int k, int t){
if (k == t) {
for (int i = 1; i <= k; i++) {
g << x[i] << " ";
};
g << "\n";
}
}
void bt(int k, int t)
{
for(int i = x[k - 1] + 1; i <= n - t + k; i++)
{
x[k] = i;
if (k == t) afisare(k, t);
if (x[k] < n) {
bt(k + 1, t);
}
}
}
int main()
{
int m;
f >> n >> m;
bt(1, m);
return 0;
}