package dwitecontest;
import java.util.*;
import java.io.*;
public class too {
    public static void main(String[] args)throws IOException {
        Scanner fin = new Scanner(new FileReader("DATA2.txt"));
        PrintWriter fout = new PrintWriter(new FileWriter("OUT2.txt"));
        int n1, n2, n3;
        for(int i=0;i<5;i++){
            n2=0;
            n1 = fin.nextInt();
            if(n1==1)fout.println("Verified");
            else{
                int arn[] = new int[n1];
                n3 = n1-(n1/2);
                for(int j=0; j<n1; j++){
                    arn[j]=fin.nextInt();
                }
                for(int j=n1-1; j>0;j--){
                    if (arn[j]!=arn[j-1]){
                        n2++;
                    }
                }
                if(n2==n1-1){
                    fout.println("Unknown");
                }
                else if(n2>=n3){
                    fout.println("Unverified");
                }
                else if(n2<=n3){
                    fout.println("Verified");
                }
            }
        }
        fout.close();
    }
}