# PIN problem

# Function to return if PIN entered is valid or invalid
def GetPIN(PIN):
    Attempts = 0
    ValidInput = False
    # Validation
    while not ValidInput and Attempts < 3:
        Number = input("Enter PIN: ")
        # Check if PIN matches
        if Number == PIN:
            ValidInput = True
        else:
            Attempts = Attempts + 1
            
    # Return whether PIN is accepted or not        
    if Attempts < 3:
        return True
    else:
        return False    

# Main program
SecurityPassed = GetPIN("2345")
if SecurityPassed:
    print("Hello")
else:
    print("Locked out")