#include<stdio.h>
int n,m,st[100];

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

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