loop trouble

[Jei]

def sub(testme):
    if len(testme) > 5:
        return 0
    else:
        return 1

def main():
    while True:
        ask = input("Write something (quit ends): ")  
        vastus = sub(ask)
        if ask == "quit":
            break        
        elif vastus == True:
            print("Too short")    
        else:
            print(ask)
            
    
if __name__ == "__main__":
        main()

got it