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#include <bits/stdc++.h>
using namespace std;
ifstream fin("combinari.in");
ofstream fout("combinari.out");
int x[18], n, m, vf[18];
void afisare(){
for(int i=1; i<=m; i++){
fout << x[i] << ' ';
}
fout << '\n';
}
void bk(int k){
for(int i=x[k-1] + 1; i<=n; i++){
x[k] = i;
if(k == m) afisare();
else bk(k+1);
}
}
int main(){
fin >> n >> m ;
x[0] = 0;
bk(1);
return 0;
}