题解 | #数字颠倒#

const rl = require("readline").createInterface({ input: process.stdin });
var iter = rl[Symbol.asyncIterator]();
const readline = async () => (await iter.next()).value;

void async function () {
    // Write your code here
    while(line = await readline()){
        // 先转为数组--->再将数组反向--->再将反向后的数组转为字符串
        console.log(line.split('').reverse().join(''))
    }
}()