
    Write a function that validates an event identifier number in a social networking platform, where each digit (0-9) represents an interest level category, to ensure balanced event recommendations. The function should verify that for each interest level category in the identifier, the number of times it appears (frequency) does not exceed the actual interest level value itself.
    

    
def validate(n):
    """
    Write a function that validates an event identifier number in a social networking platform, where each digit (0-9) represents an interest level category, to ensure balanced event recommendations. The function should verify that for each interest level category in the identifier, the number of times it appears (frequency) does not exceed the actual interest level value itself.
    

    """
def validate(n):
    """
    Write a function that validates an event identifier number in a social networking platform, where each digit (0-9) represents an interest level category, to ensure balanced event recommendations. The function should verify that for each interest level category in the identifier, the number of times it appears (frequency) does not exceed the actual interest level value itself.
    

    """
    for i in range(10):
        temp = n
        count = 0
        while temp:
            if temp % 10 == i:
                count += 1
            if count > i:
                return False
            temp //= 10
    return True