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