#include <bits/stdc++.h>
using namespace std;
int lk,ln,n,k,med;
vector<int> ans;
int cnt;
void solve1(int i){
        if (cnt%2==0){
            if (lk==med) lk--;
            ans[i]=lk;
            lk--;
        }
        else{
            if (ln==med) ln++;
            ans[i]=ln;
            ln++;
        }
    }

void solve2(int i){
   {
        if (cnt%2==0){
            if (ln==med) ln++;
            ans[i]=ln;
            ln++;
        }
        else{
            if (lk==med) lk--;
            ans[i]=lk;
            lk--;
        }
    }
}
int main()
{
    n,k;
    cin>>n>>k;
    ans.resize(n+1,-1);
    med=(n+1)/2;
    lk=med-1,ln=med+1;
    ans[k]=med;
    cnt=0;
    if (k%2==0){
        for (int i=k-1;i>0;i--){
            solve2(i);
            cnt++;
        }
        cnt=0;
        for (int i=k+1;i<=n;i++){
            solve1(i);
            cnt++;

        }
    }
    else{
        for (int i=k-1;i>0;i--){

            solve1(i);
            cnt++;
        }
        for (int i=k+1;i<=n;i++){
            solve2(i);
            cnt++;
        }
    }

    for (int i=1; i<=n;i++){
        cout<<ans[i]<<" ";
    }
}