import fs from 'fs' const input: Array<[number, number, number]> = fs.readFileSync(__dirname + '/input.txt').toString() .split('\n') .map((it) => it.split('x').map((v) => parseInt(v)) as [number, number, number]) function calc(item: [number, number, number]) { const l = item[0] const w = item[1] const h = item[2] const largest = Math.max(l, w, h) const tmp = l === largest ? w+h : w === largest ? l+h : l+w return tmp + tmp + l*w*h } console.log( "Result:", input.reduce((p, c) => p + calc(c), 0) )