def g(a, b): sleep(.5) return a + b
def f(a, b=10): sleep(1)
def f(a, b=10): sleep(1) return a + b
def g(a, b): sleep(.5) return a + b
def f(a, b=10): sleep(1)
def f(a, b=10): sleep(1) return a + b
def g(a, b): sleep(.5) return a + b
def f(a, b=10): sleep(1)
def f(a, b=10): sleep(1) return a + b
def g(a, b): sleep(.5) return a + b
def f(a, b=10): sleep(1)
def f(a, b=10): sleep(1) return a + b