//No.118 ι–€ζΎεˆ—(2) import java.util.*; import java.io.*; import java.math.*; import static java.util.Arrays.*; import static java.lang.Math.*; public class No118 { static final InputStream in = System.in; static final PrintWriter out = new PrintWriter(System.out,false); static void solve(){ int n = nextInt(); int[] a = nextArrayInt(n); sort(a); long mul = 1; int cnt = 1; Set set = new HashSet(); for (int i=0; i