import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.Arrays;

public class CalculateAgain {
    public static void main(String[] args) throws IOException {
        BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));

        long n = Long.parseLong(reader.readLine());
        long[] numbers = Arrays.stream(reader.readLine().split(" ")).mapToLong(Long::parseLong).toArray();

        long even = 1, odd = 1;
        for (int i = 0; i < n; ++i) {
            if (i % 2 == 0) {
                even *= numbers[i];
            } else {
                odd *= numbers[i];
            }
        }
        System.out.println(even == odd ? "yes " + even : "no " + even + " " + odd);
    }
}