排序前后，猜错几次

运行下面这段程序，填写它打印出来的结果。

def wrong_guesses(pattern):
    last = -1
    wrong = 0
    for t in pattern:
        if last == -1 or t != last:
            wrong = wrong + 1
        last = t
    return wrong

raw = [1, 0, 1, 1, 0, 0, 1, 0]
sortd = sorted(raw)
print(str(wrong_guesses(raw)) + "/" + str(wrong_guesses(sortd)))