[Javascript] 백준 2588번 곱셈

const fs = require("fs").readFileSync("/dev/stdin").toString().split("\n");

const [num1, num2] = fs;

const result1 = num1 * (num2 % 10);
const result2 = (num1 * ((num2 % 100) - (num2 % 10))) / 10;
const result3 = num1 * Math.floor(num2 / 100);

console.log(result1);
console.log(result2);
console.log(result3);

console.log(result1 + result2 * 10 + result3 * 100);

https://www.acmicpc.net/problem/2588