#include <bits/stdc++.h>
using namespace std;
int mediana(vector<int> &v) {
  if (int(v.size()) % 2 == 1) return v[int(v.size()) / 2];
  return v[int(v.size()) / 2 - 1];
}
bool esta(vector<int> &v, int x) {
  for (int i = 0; i < int(v.size()); i++)
    if (v[i] == x) return true;
  return false;
}
int main() {
  int n, x;
  cin >> n >> x;
  vector<int> v(n);
  for (int i = 0; i < n; i++) cin >> v[i];
  sort(v.begin(), v.end());
  int amount = 0;
  while (mediana(v) != x) {
    if (not esta(v, x))
      v.push_back(x);
    else if (mediana(v) < x)
      v.push_back(1000000001);
    else
      v.push_back(-1);
    amount++;
    sort(v.begin(), v.end());
  }
  cout << amount << endl;
}
