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#include <iostream>
#include <fstream>
#define nMax 20
using namespace std;
ifstream fin("combinari.in");
ofstream fout("combinari.out");
int n, k;
int st[nMax];
void print(){
for(int i = 1; i <= k; i++){
fout<<st[i]<<" ";
}
fout<<"\n";
return;
}
void comb(int c){
if(c == k + 1){
print();
return;
}
for(int i = st[c - 1] + 1; i <= n; i++){
st[c] = i;
comb(c + 1);
}
return;
}
int main(){
fin>>n>>k;
comb(1);
return 0;
}