function Main(input) {
    const S = input.trim();
    const set = new Set("1234567890".split(""));
    let ans = [];
    let rev = true;
    for (let i = 0; i < S.length; i++) {
        if (rev && set.has(S[i])) {
            ans.reverse();
            rev = false;
        }
        ans.push(S[i]);
    }
    console.log(ans.join(""));
}
Main(require("fs").readFileSync(0)+"")