import { open } from 'node:fs/promises';


const file = await open('./2025/inputs/3');
let count = 0
for await (const line of file.readLines()) {
    count += findPair(line.split("").map(Number))
}


function findPair(numbs: Array<number>) {
    const max = Math.max(...numbs.toSpliced(-1, 1))
    const maxIndex = numbs.indexOf(max)

    const digit = Math.max(...numbs.slice(maxIndex + 1))
    return (max * 10) + digit
}

console.log(count)