function theLoveLetterMystery(s: string): number {
    let operations = 0

    // Calculate the sum of the differences between opposite pairs of characters (number ascii).
    for (let i = 0; i < Math.floor(s.length / 2); i++) {
        let reverse_i = s.length - i - 1
        if (s[i] != s[reverse_i]) {
            operations += Math.abs(s.charCodeAt(i) - s.charCodeAt(reverse_i))
        }
    }

    return operations
}