题解 | #提取不重复的整数#

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()){
        let str=Number(Array.from(new Set(line.toString().split('').reverse())).join(''))
     console.log(str)   
    }
}()