题解 | 小红的合数寻找

const rl = require("readline").createInterface({ input: process.stdin });
var iter = rl[Symbol.asyncIterator]();
const readline = async () => (await iter.next()).value;
const findOdd = (number) =>{
  for(let i = 2*number;i>1;i-2){
     console.log(i%2===0&&i!==2?i:-1)
     return
  }
     
}
void async function () {
    // Write your code here
    while(line = await readline()){
    findOdd(Number(line))
       
    }
}()