import java.io.BufferedReader; import java.io.InputStreamReader; public class Main { public static void main(String[] args) throws Exception { BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); String[] sa = br.readLine().split(" "); int n = Integer.parseInt(sa[0]); int k = Integer.parseInt(sa[1]); String s = br.readLine(); br.close(); String t = s.substring(k - 1); StringBuilder sb = new StringBuilder(s.substring(0, k - 1)); if (t.length() % 2 == 1) { sb.reverse(); } System.out.println(t + sb.toString()); } }