import { readFileSync } from 'node:fs';

//const inputArray = readFileSync('sample.txt').toString().split(",");
const inputArray = readFileSync('input.txt').toString().split(",");

// Part One

let sum = 0;

for (const element of inputArray) {
  const contents = element.split("-");
  const start = Number.parseInt(contents[0]);
  const end = Number.parseInt(contents[1]);

  for (let sku = start; sku <= end; sku++) {
    const skuString = sku.toString();
    const digits = skuString.length
    if (digits % 2 === 0) {
      if (skuString.slice(0, digits / 2) === skuString.slice(digits / 2)) {
        sum += sku;
      }
    }
  }
}

console.log(sum);


// Part Two

for (const element of inputArray) {
  const contents = element.split("-");

}

console.log();

// functions