X or Y

This problem was asked by Facebook.

Given three 32-bit integers x, y, and b, return x if b is 1 and y if b is 0, using only mathematical or bit operations. You can assume b can only be 1 or 0.

My Solution(Python):

def x_or_y(x, y, b):
    return x*b + y*(1-b)

if __name__=='__main__':
    print(x_or_y(5, 8, 1))
    print(x_or_y(5, 8, 0))