08. Equal Pairs

n = int(input())
number = n * 2

min_sum = 0
max_sum = 0
constant_sum = 0
current_sum = 0
for i in range(1, number + 1,):
    current_num = int(input())
    if i == 2:
        current_sum += current_num
        constant_sum = current_sum
        min_sum = constant_sum
    elif i % 2 == 0:
        current_sum += current_num
        if min_sum < current_sum:
            max_sum = current_sum
        elif min_sum > current_sum:
            min_sum = current_sum
    else:
        current_sum = 0
        current_sum += current_num
diff = abs(max_sum - min_sum)
if constant_sum == current_sum:
    print(f'Yes, value={constant_sum}')
else:
    print(f'No, maxdiff={diff}')