BThero is a powerful magician. He has got $n$ piles of candies, the $i$-th pile initially contains $a_i$ candies. BThero can cast a copy-paste spell as follows:

1. He chooses two piles $(i, j)$ such that $1 \le i, j \le n$ and $i \ne j$.
2. All candies from pile $i$ are copied into pile $j$. Formally, the operation $a_j := a_j + a_i$ is performed.

BThero can cast this spell any number of times he wants to — but unfortunately, if some pile contains strictly more than $k$ candies, he loses his magic power. What is the maximum number of times BThero can cast the spell without losing his power?

Input

The first line contains one integer $T$ ($1 \le T \le 500$) — the number of test cases.

Each test case consists of two lines:

• the first line contains two integers $n$ and $k$ ($2 \le n \le 1000$, $2 \le k \le 10^4$);
• the second line contains $n$ integers $a_1$, $a_2$, ..., $a_n$ ($1 \le a_i \le k$).

It is guaranteed that the sum of $n$ over all test cases does not exceed $1000$, and the sum of $k$ over all test cases does not exceed $10^4$.

Output

For each test case, print one integer — the maximum number of times BThero can cast the spell without losing his magic power.

见题面 Input 部分

见题面 Output 部分

In the first test case we get either $a = [1, 2]$ or $a = [2, 1]$ after casting the spell for the first time, and it is impossible to cast it again.