
    Write a function that validates a patient's risk assessment code, where each digit represents a specific demographic risk factor, by ensuring that the frequency of each risk factor code in the identifier does not exceed its corresponding risk threshold value represented by the digit itself. For example, if a patient has risk code '33221', the frequency of each digit (risk factor) must not exceed its face value (i.e., 3 can appear up to 3 times, 2 can appear up to 2 times, and 1 can appear once).
    

    
def validate(n):
    """
    Write a function that validates a patient's risk assessment code, where each digit represents a specific demographic risk factor, by ensuring that the frequency of each risk factor code in the identifier does not exceed its corresponding risk threshold value represented by the digit itself. For example, if a patient has risk code '33221', the frequency of each digit (risk factor) must not exceed its face value (i.e., 3 can appear up to 3 times, 2 can appear up to 2 times, and 1 can appear once).
    

    """
def validate(n):
    """
    Write a function that validates a patient's risk assessment code, where each digit represents a specific demographic risk factor, by ensuring that the frequency of each risk factor code in the identifier does not exceed its corresponding risk threshold value represented by the digit itself. For example, if a patient has risk code '33221', the frequency of each digit (risk factor) must not exceed its face value (i.e., 3 can appear up to 3 times, 2 can appear up to 2 times, and 1 can appear once).
    

    """
    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