Trouble with simple roulette game

[chadandersen1]

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import random
print("Welcome to my Online Roulette game!")
print("Your starting balance is $50, or 5000 tokens.")
## Sets starting balance to 5000
balance=5000
## Function that should occur when a win takes place on green
def greenWin():
    balance=balance+greenwin
    print("The roll was a " + str(roll) +".")
    print("Your balance is now "+ str(balance)+" tokens. Congratulations!")
## Function that should occur when a win takes place on red or black
def redBlackWin():
    balance=balance+redblackwin
    print("The roll was a " + str(roll) +".")
    print("Your balance is now "+ str(balance)+" tokens. Congratulations!")
## Function that should occur when any bet is lost
def loss():
    print("The roll was a " + str(roll) +".")
    print("Your balance is now "+ str(balance)+" tokens.")
## Game goes on until balance is 0, then the for loop breaks
for i in range(999999999999):
    ## Asks user how many tokens should be bet
    betamount=int(input("How many tokens would you like to bet?"))
    ## Asks user what color to bet on
    betcolor=int(input("Bet on red (enter 1), black (enter 2), or green (enter 3)?"))
    ## Winning on a green bet is 35 times the amount of money bet
    greenwin=betamount*35
    ## Winning on a red or black bet is 2 times the amount of money bet
    redblackwin=betamount*2
    ## Rolls a random number from 0 to 36
    roll=random.randint(0,36)
    ## Lists winning numbers for red and black
    red=[1, 3, 5, 7, 9, 12, 14, 16, 18, 19, 21, 23, 25, 27, 30, 32, 34, 36]
    black=[2, 4, 6, 8, 10, 11, 13, 15, 17, 20, 22, 24, 26, 28, 29, 31, 33, 35]
    ## Subtracts what you bet from your balance
    balance=balance-betamount
    ## If you bet on red:
    if betcolor is 1:
        if roll is red:
            redBlackWin()
        else:
            loss()
    ## If you bet on black:
    elif betcolor is 2:
        if roll is black:
            redBlackWin()
        else:
            loss()
    ## If you bet on green:
    elif betcolor is 3:
        if roll is 0:
            greenWin()
        else:
            loss()
    ## If your balance is 0 for loop breaks and game ends
    if balance is 0:
                print("You have ran out of money. Better luck next time!")
                break

Here is my extremely simple code for a roulette game I've made using IDLE. I'm fairly new to Python and can't quite figure out why this isn't working. There is no error, but the problem is being able to win. Even if you do roll a red number while betting on red, it will subtract from your balance. Winning on green works, but black and red do not. Losing works just fine. As an example, say I bet 1000 tokens on 1 (or red). I roll a number from the black list, and lose 1000 tokens. I bet 1000 tokens on red again and this time roll a 7, which is a red number. I now have 3000 tokens instead of the 5000 tokens I should have. I feel like my code should work perfectly fine and don't really understand why it doesn't.