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#include <fstream>
using namespace std;
ifstream fin ("combinari.in");
ofstream fout ("combinari.out");
int n,k,x[25];
int verif (int pas){
if (x[pas]<=x[pas-1]&&pas>=1){
return 0;
}
return 1;
}
void backtrack(int pas){
if (pas==k+1){
for (int i=1;i<=k;i++){
fout<<x[i]<<" ";
}
fout<<"\n";
}
else{
for (int i=1;i<=n;i++){
x[pas]=i;
if (verif(pas)==1){
backtrack(pas+1);
}
}
}
}
int main () {
fin>>n>>k;
backtrack(1);
}