import java.io.*; import java.util.*; import java.text.*; import java.math.*; import java.util.regex.*; public class alice { public static void main(String[] args) { Scanner in = new Scanner(System.in); int g = in.nextInt(); int[] a = new int[g]; int[] b= new int[g]; for(int a0 = 0; a0 < g; a0++){ a[a0] = in.nextInt(); b[a0]=a[a0]; } boolean[] prime = new boolean[100001]; for(int i=0;i<=100000;i++) prime[i]=true; prime[0]=false; prime[1]=false; for(int i=2;i*i<=100000;i++){ if(prime[i]==true){ for(int j=i*i;j<=100000;j=j+i){ prime[j]=false; } } } Arrays.sort(a); HashMap h = new HashMap(); int k=2,count=0; for(int i=0;i