simple situation game

kireh.py

def challange_1():
    print("welcome to the kreh game")
    print("you set off with your family")
    print("you hear screams")
    print("a bear attacks you and your little son")
    print("you have a choice")
    print("a. grab a gun")
    print("b. run for your life")

    user_input = input()
    if user_input == "a":
        print("you shoot the bear and survive")
        return "alive"
    elif user_input == "b":
        print("you run away but bear cought you")
        return "dead"
    else:
        print("you fail to do any thing")
        return "dead"




def challange_2():
    #challange
    print("a mystic meets you on the road and says he's thinking number between his number or you will die") 
    print("guess the numbers from 1-10")
    
    user_input = int(input())
    if user_input > 3 and user_input < 7:
        print("wow you somehow survived")
        return "alive"
    else:
        print("you were wrong. the mystic magic puts a spell on you and you melt and die")
        return "dead"

def challange_3():
    print("you have to cross a land known for snakes")
    print("pick a number between 10 and 15 ")
    user_input = int(input())
    if user_input < 10 or user_input > 15:
        print("you didnt follow rule u died")
        return "dead"
    else:
        if user_input != 13:
            print("the snake does not attack you")
            return "alive"
        else:
            print("you know it was unlucky no.")
            return "dead"

import random 
alive = "alive"
while alive == "alive":
    challange_number = random.randint(1,3)
    if challange_number == 1:
        alive = challange_1()
    elif challange_number == 2:
        alive = challange_2()
    elif challange_number == 3:
        alive = challange_3()