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#include <bits/stdc++.h>
using namespace std;
ifstream in("combinari.in");
ofstream out("combinari.out");
int stiva[10];
//bitset<10> viz;
int n;
void back(int niv, int target){
if (niv==target+1){
for (int i=1; i<=target; i++)
out << stiva[i] << ' ';
out << '\n';
return;
}
else{
for (int i=stiva[niv-1]+1; i<=n-target+niv; i++){
stiva[niv]=i;
back(niv+1, target);
}
}
}
int main(){
int k;
in >> n >> k;
back(1, k);
}