function Main(input) {
    input = input.split("\n");
    const N = Number(input[0]);
    const S = input[1].trim();
    if (N % 2 === 0) {
        const P = [];
        const Q = [];
        for (let i = 0; i < N; i++) {
            if (i % 2 === 0) {
                P.push(S[i]);
            } else {
                Q.push(S[i]);
            }
        }
        console.log("Yes");
        console.log(P.join(""), Q.join(""));
    } else {
        console.log("No");
    }
}
Main(require("fs").readFileSync(0)+"")