Odd Or Even Product

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

class Program
{
    static void Main()
    {
        ulong number=ulong.Parse(Console.ReadLine());
        string line=Console.ReadLine();
        ulong [] array=line.Split().Select(ulong.Parse).ToArray();
        ulong oddProduct=1;
        ulong  evenProduct=1;
        for(ulong i=0;i<number;i++)
        {
            if(i%2==0)
            {
                evenProduct*=array[i];
            }
            else
            {
                oddProduct*=array[i];
            }
        }
        if(oddProduct==evenProduct)
        {
            Console.WriteLine($"yes {oddProduct}");
        }
        else
        {
            Console.WriteLine($"no {evenProduct} {oddProduct}");
        }
    }
}