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export default function flipLights(n: number, m: number): number {    if (!n || !m) return 1;    else if (n == 1) return 2;    else if (n == 2) return 3 + Number(m > 1);    else {        if (m == 1) return 4;        else if (m == 2) return 7;        else return 8;    }}