odd_even

n = int(input())

odd_sum = 0
even_sum = 0

for number in range(1, n+1):
    current_sum = int(input())
    if number % 2 == 0:
        even_sum += current_sum
    else:
        odd_sum += current_sum
total = abs(even_sum - odd_sum)

if odd_sum == even_sum:
    print(f"Yes {even_sum}")
else:
    print(f"No {total}")