string[] nums = Console.ReadLine().Split(new char[] { ' ' }, StringSplitOptions.RemoveEmptyEntries);
int[] sums = new int[nums.Length / 3];

int sumsIndex = 0;

for (int i = 0; i < nums.Length; i += 3)

{

sums[sumsIndex] = int.Parse(nums[i]) + int.Parse(nums[i + 1] + int.Parse(nums[i + 2]));

sumsIndex++;

}

int diff = 0;

for (int j = 0; j < sums.Length - 1; j++)
{
if (Math.Abs(sums[j] - sums[j + 1]) > diff)
{
diff = Math.Abs(sums[j] - sums[j + 1]);
}
}
if (diff == 0)
{Console.WriteLine("Yes, value=" + sums[0]);
}
else
{Console.WriteLine("No, maxdiff=" + diff);
}