The first input line has an integer $n$: the number of values. The second line has $n$ integers $x_1,x_2,\dots,x_n$.

Print one integers: the number of distinct values.

Print one integers: the number of distinct values. $$ 1 \le n \le 2 \cdot 10^5 $$ $$ 1 \le x_i \le 10^9 $$