#include <iostream>
#include <algorithm>
using namespace std;
int i, j, n, a[100000], x, d;
main()
{
cin >> n >> x;
for (i = 0; i < n; i++)
cin >> a[i];
d = 0;
sort(a, a + n);
while (a[(n - 1) / 2] != x)
{
a[n++] = x;
sort(a, a + n);
d++;
}
cout << d;
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