Odd/Even possistion sum

n = int(input())

even_sum = 0
odd_sum = 0

for i in range(1, n+1):
    current_num = int(input())
    if i % 2 == 0:
        odd_sum += current_num
    else:
        even_sum += current_num
if even_sum == odd_sum:
    print(f"Yes")
    print(f"Sum = {odd_sum}")
else:
    print("No")
    print(f"Diff = {abs(odd_sum-even_sum)}")