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#include <bits/stdc++.h>
#define MOD 1999999973
#define ull unsigned long long
using namespace std;
ifstream fin("combinari.in");
ofstream fout("combinari.out");
int v[1000];
int n,m;
bool ok(int k){
for(int i = 1; i < k; i++){
if(v[i] == v[k])
return 0;
}
return 1;
}
void backt(int k){
int i;
for(i = v[k-1]+1; i <= n; i++){
v[k] = i;
if(ok(k)){
if(k < m){
backt(k+1);
}else{
for(int j = 1; j <= m; j++){
cout<<v[j]<<" ";
}
cout<<endl;
}
}
}
}
int main()
{
cin>>n>>m;
backt(1);
return 0;
}