#include <stdio.h>
int n,m;
int a[20];
bool b[20];

void back(int k)
{
    if(k-1==m)
    {
        for(int i=1;i<=m;i++)
            printf("%d ", a[i]);
        printf("\n");
    }
    else
    {
        for(int i=a[k-1]+1;i<=n-(m-k);i++)
        if(b[i]==0)
        {
            b[i]=1;
            a[k]=i;
            back(k+1);
            b[i]=0;
        }
    }
}

int main()
{
    freopen("combinari.in","r",stdin);
    freopen("combinari.out","w",stdout);
    scanf("%d %d", &n, &m);
    back(1);
    return 0;
}