Given an array $x$ of $n$ integers, your task is to process $q$ queries of the form: how many integers $i$ satisfy $a \le i \le b$ and $c \le x_i \le d$ ?
The first line has two integers $n$ and $q$ : the number of values and queries.
The second line has $n$ integers $x_1,x_2,\dots,x_n$ : the array values.
Finally, there are $q$ lines describing the queries. Each line has four integers $a$ , $b$ , $c$ and $d$ : how many integers $i$ satisfy $a \le i \le b$ and $c \le x_i \le d$ ?
Print the result of each query.
8 4 3 2 4 5 1 1 5 3 2 4 2 4 5 6 2 9 1 8 1 5 3 3 4 4· \n · · · · · · · \n · · · \n · · · \n · · · \n · · · \n
2 0 8 1\n \n \n \n