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#include <bits/stdc++.h>
using namespace std;
ifstream fin("combinari.in");
ofstream fout("combinari.out");
int i,n,sol[15],uz[15],m;
void afisare();
void backtracking(int k);
int main()
{
fin >> n >> m;
backtracking(1);
return 0;
}
void afisare()
{
int i;
for(i=1; i<=m; i++)
fout << sol[i] << ' ';
fout << '\n';
}
void backtracking(int k)
{
int i;
if(k>m)
afisare();
else
{
for(i=sol[k-1]+1; i<=n; i++)
{
if(uz[i]==0)
{
uz[i]=1;
sol[k]=i;
backtracking(k+1);
uz[i]=0;
}
}
}
}