#include <cstdio>

const int maxn = 32;

FILE *in = fopen("combinari.in","r"), *out = fopen("combinari.out","w");

int n, k;
int st[maxn];

void back(int q)
{
    if ( q > k )
    {
        for ( int i = 1; i <= k; ++i )
            fprintf(out, "%d ", st[i]);
        fprintf(out, "\n");

        return;
    }

    for ( int i = st[q-1] + 1; i <= n; ++i )
        st[q] = i, back(q+1);
}

int main()
{
    fscanf(in, "%d %d", &n, &k);

    back(1);


    return 0;
}