# include <cstdio>
# define MAXN 20
using namespace std;
int n,m,i;
int sol[MAXN];

void afis()
{
    int i;
    for(i=1; i<=m; ++i)
        printf("%d ", sol[i]);
    printf("\n");
    return;
}
void back(int k)
{
    int i;
    if(k>m) afis();
    else
        for(i=sol[k-1]+1; i<=n; ++i)
        {
            sol[k]=i;
            back(k+1);
        }
    return;
}
int main()
{
    freopen("combinari.in", "r", stdin);
    freopen("combinari.out", "w", stdout);
    scanf("%d %d\n", &n, &m);
    sol[0]=0;
    back(1);
    return 0;
}