WARNING: This program has an error! We are trying to change "black" to "blue" in the rainbow list. Let's debug it!

RULE: .index() returns the index of a value in a list.

• Click Run and read the error message.
• Change what's in the parentheses of .index() to get the index of the color we want to change.
• Click Run to see if you fixed the program. When it is fixed, click Submit and Next.

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