#include <cstdio>
int x[20];

int main(){
    int n,k,t;
    freopen("combinari.in","r",stdin);
    freopen("combinari.out","w",stdout);
        scanf("%d %d",&n,&k);
        for(int i=1;i<=(1<<n);i++)
        {
            t=0;
            for(int j=0;j<n;j++)
            if(i&(1<<j))x[++t]=j;
            if(t==k)
            {
                for(int j=1;j<=k;j++)printf("%d ",x[j]+1);
                printf("\n");
            }
        }
    return 0;
}