EOFError: EOF when reading a line. Python

while True:
    a=int(input()) 
    while True:
        if a<10 or a>100:
            break
        else:
            print(a)
            break

Output:

Traceback (most recent call last): File "jailed_code", line 2, in a=int(input()) EOFError: EOF when reading a line

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