#include <stdio.h>
using namespace std;
FILE *f=fopen("combinari.in","r");
FILE *g=fopen("combinari.out","w");
long n,m,i,j,x[50];
void afisare()
{
    for(int i=1;i<=m;i++)
        fprintf(g,"%ld ",x[i]);
    fprintf(g,"\n");
}
void bkt(long k)
{
    if (k>m)
        afisare();
    else
        for (int i=x[k-1]+1;i<=n;i++)
        {
            x[k]=i;
            bkt(k+1);
        }
}
int main()
{
    fscanf(f,"%ld%ld",&n,&m);
    for (i=1;i<=n-m+1;i++)
    {
        x[1]=i;
        bkt(2);
    }



    fclose(f);
    return 0;
}