ABCDEF - ABCDEF

``` 给定一个集合S（元素个数100以内） 求满足下式的六元组个数 ``` $$\frac{a*b+c}{d}-e=f$$ Translated by @xzyxzy

You are given a set S of integers between -30000 and 30000 (inclusive). Find the total number of sextuples  that satisfy:  ### Input The first line contains integer N (1 Elements of S are given in the next N lines, one integer per line. Given numbers will be distinct.

Output the total number of plausible sextuples.

1
1

1

2
2
3

4

2
-1
1

24

3
5
7
10

10