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 arr = line.split('')
console.log(arr.reverse().join(''))
}
}()
console.log(readline().split('').reverse().join('')) JavaScript(V8 6.0.0)
process.stdin.resume();
process.stdin.setEncoding('utf-8');
let input = '';
process.stdin.on('data',(data)=>{
input += data;
});
process.stdin.on('end',()=>{
let inputArry = input.split('\n');
let arr = inputArry[0].split("");
console.log(arr.reverse().join(""));
process.exit();
})