import math
n = int(input())
odd_sum = 0
even_sum = 0
for position in range (1, n +1 ):
    number = int(input())

    if position % 2 == 0:
        even_sum += number
    else:
        odd_sum += number

if odd_sum == even_sum:
    print("Yes")
    print('Sum = %d ' % odd_sum)
else:
    print("No")
    print("Diff = %d" % math.abs(even_sum - odd_sum))