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 let groupCount = 0 let fristInput = 0 while(line = await readline()){ let tokens = line.split(' '); if (0 === groupCount) { groupCount = parseInt(tokens[0], 10) } else if (0 === fristInput) { fristInput = parseInt(tokens[0], 10) } else { tokens = tokens[0].split('').reverse().join('') console.log(tokens) fristInput = 0 } } }()