Number Guesser

lower_bound = 0
upper_bound = 100
guess = int((upper_bound + lower_bound) / 2)
secret_number = ""
answer = ""

print("Please think of a number between", lower_bound, "and", upper_bound)
print("Is your secret number", guess, "?")
while answer != "c":
    answer = input("Enter 'h' to indicate the guess is too high. Enter 'l' to indicate the guess is too low. Enter 'c' to indicate I guessed correctly.")
    if answer == "h":
        upper_bound = guess
        guess = int((upper_bound + lower_bound) / 2)
        print("Is your secret number", guess, "?")
    elif answer == "l":
        lower_bound = guess
        guess = int((upper_bound + lower_bound) / 2)
        print("Is your secret number", guess, "?")
    elif answer == "c":
        print("Game over. Your secret number was:", guess)
    else:
        print("Sorry, I did not understand your input")
        print("Is your secret number", guess, "?")