n = int(input())

for i in range (n+2):
    num1 = int(input())
    num2 = int(input())
    num3 = int(input())
    num4 = int(input())
    if (num1 + num2) == (num3 + num4):
        print(f'Yes, sum = {num1 + num2}')
    else:
        l = num2 + num1
        m = num3 + num4
        print(f'No, diff = {abs(l - m)}')