treasure_island.py

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print("Welcome to the treassure island,your mission is to find the tressure.")
print("You\'re at a  mission to find a tressure.")
a = input('So, in which direction do you want to go? "left" or "right".' ).lower()
if a == "left":
    b = input('Do you want to "swim" or "wait".').lower()
    if b == "wait":
        c = input('There are three doors, in which do you want to enter? "red","blue" or "yellow".').lower()
        if c == "red":
            print("Burned by fire.\nGame Over.")
        elif c == "blue":
            print("eaten by beast.\nGame Over.")
        elif c == "yellow":
            print("You Win.")
        else:
            print("Game Over.")
    else:
        print("Attacked by trout.\nGame Over.")
else:
    print("Fall into a hole.\nGame Over.")