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In [1]:

    
import random
total = 0
i = 1
n = int(input('请输入一个整数，按回车键结束'))
m = random.randint(1, 9)
print(m)
while i <= n:
    total = total + ((10**i - 1) / 9) * m
    i = i + 1
print(total)









    



请输入一个整数，按回车键结束4
1
1234.0