python 近千学学生排序的问题

源程序：

m = 1000
n = 1000
while True:
    if m % 7 == 3 and m % 5 == 2 and m % 3 == 1:
        print(m)
        break
    if n % 7 == 3 and n % 5 == 2 and n % 3 == 1:
        print(n)
        break

    n = n + 1
    m = m - 1