题解 | 大水题
大水题
https://www.nowcoder.com/practice/435aa556e093463891f6da7d322140a4
n = str(input())
while len(n) > 1:
s = 0
for i in n:
s = s + int(i)
n = str(s)
print(n)
大水题
https://www.nowcoder.com/practice/435aa556e093463891f6da7d322140a4
n = str(input())
while len(n) > 1:
s = 0
for i in n:
s = s + int(i)
n = str(s)
print(n)
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