#include <bits/stdc++.h>
using namespace std;
long long gcd(long long a, long long b) {
  if (b == 0) return a;
  return gcd(b, a % b);
}
long long cnt1, cnt2, x, y;
bool f(long long v) { return v - v / x >= cnt1; }
bool f1(long long v) { return v - v / y >= cnt2; }
int main() {
  int n, k, l, r;
  cin >> n >> k;
  l = 1;
  r = n;
  while (r - l + 1 != n - k) {
    cout << l << " ";
    l++;
    if (r - l + 1 != n - k) {
      cout << r << " ";
      r--;
    } else {
      for (int i = l; i <= r; i++) cout << i << " ";
      return 0;
    }
  }
  for (int i = r; i >= l; i--) cout << i << " ";
}
