Y = int(input())
M = int(input())
difference = M - Y
oldest = M + difference
print(oldest)

d2a6c99cb9df8c8843a55eb402b6178d17012ea7
<mask token>

<mask token>
print(oldest)

Y = int(input())
M = int(input())
difference = M - Y
oldest = M + difference
print(oldest)
