#include<stdio.h>   
int n,k,st[27];   
void bkt(int l)   
{   
    int i;   
    if(l==k){   
        for(i=1;i<=k;i++)   
            printf("%d ",st[i]);   
        printf("\n");   
    }   
    else   
        for(i=st[l]+1;i<=n;i++){   
            st[l+1]=i;   
            bkt(l+1);   
        }   
}   
int main()   
{   
    freopen("combinari.in","r",stdin);   
    freopen("combinari.out","w",stdout);   
    scanf("%d %d",&n,&k);   
    bkt(0);   
    return 0;   
}