# 2639. Ellipse, again and again

### 输入格式

The first line contains a positive integer n that indicates number of test cases.

And each test case contains a line with four integers. The value of parameters of the ellipse a, b(0<|a|,|b|<=100),and the coordinates x, y of P(|x|<=100,|y|<=100) are given successively.

### 输出格式

For each test case, output one line. If the given point P lies inside the given ellipse, print “In ellipse” otherwise print the value of ddQF1*QF2 rounded to the nearest integer.

### 样例

Input
1
1 1 1 1

Output
1


10 人解决，10 人已尝试。

14 份提交通过，共有 60 份提交。

5.3 EMB 奖励。