#include <bits/stdc++.h>

int n,m,x[20];
bool viz[20];

void afisare()
{
    int i;
    for (i=1; i<=m; i++) printf("%d ",x[i]);
    printf("\n");
}

void back(int k)
{
    int i;
    if (k==m+1) afisare();
    else
        for (i=x[k-1]+1; i<=n; i++)
        {
            x[k]=i;
            back(k+1);
        }
}

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