Weird Question

You are given an integer sequence $A$ with length $N$. Find the number of ordered pairs of positive integers $(a, b)$ such that $a$ occurs in $A$ at least $b$ times and $b$ occurs in $A$ at least $a$ times. ### Input - The first line of the input contains a single integer $T$ denoting the number of test cases. The description of $T$ test cases follows. - The first line of each test case cont