Help me fix this problem or "BUG"???

Question

Do you know what is wrong with this code?
When I RUN it on My LAPTOP and then i input a random/wrong input for the user_input variable, the while loop breaks, i don't want it, i want the code to print "Wrong input". Then, when i change the 23rd line to:

if user_input == "end":

The code will succesfully print "Wrong input", but i don't want to change the 23rd line, i still want to give the user more option to break the loop.

while True:
user_input = input("Command: ")
if user_input == "+":
a = int(input("1st Number: "))
b = int(input("2nd Number: "))
print(a+b)
continue
if user_input == "*":
a = int(input("1st Number: "))
b = int(input("2nd Number: "))
print(a*b)
continue
if user_input == "/":
a = int(input("1st Number: "))
b = int(input("2nd Number: "))
print(a*b)
continue
if user_input == "-":
a = int(input("1st Number: "))
b = int(input("2nd Number: "))
print(a*b)
continue
if user_input == "exit" or "quit" or "end":
break
else:
print("Wrong input")
continue

Answer 1

if user_input == "exit" or "quit" or "end":

evaluates as

(user_input == "exit") or ("quit") or ("end")

in which string literals such as "quit" and "end" are true. You have to do:

if user_input == "exit" or user_input == "quit" or user_input == "end":

Answer 2

Thanks