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for i in range(100):
    a = list(str(i))
    k = 0
    for j in a:
        k = k + int(j)
    if k ** 2 == i:
        print(i)

Success #stdin #stdout 0.07s 14188KB

stdin

Standard input is empty

stdout

0
1
81

https://ideone.com/jRcsAw

language:

Python 3 (python 3.12)

created:

visibility:

public

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