Program
#include <bits/stdc++.h>
using namespace std;
int main() {
int T, N, X;
cin >> T;
while (T--)
{
int ans = 0;
cin >> N >> X;
int arr[N];
for (int i = 0; i < N; i++) cin >> arr[i];
for (int j = N-1; j >= 0; j--)
{
if (arr[j] < X)
{
ans = (j+1);
break;
}
}
cout << ans << '\n';
}
return 0;
}