How do you get the answer of 10 with these numbers 1,1,9,9?

or:How do you get the answer of 10 with these numbers 1,1,9,9?or:9^1 +1^9 = 10

or:How do you get the answer of 10 with these numbers 1,1,9,9?

or:9^1 +1^9 = 10

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