import java.time.LocalDate;
import java.util.Scanner;

public class No1020 {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int n = sc.nextInt();
        int k = sc.nextInt();
        String str = sc.next();
        char[] c = str.toCharArray();
        char[] newC = new char[n];
        for(int i=0;i<(n-k+1);i++) {
            for(int j=i;j<(k+i);j++){
                newC[k-j]=c[k];
            }
            c=newC;
        }
        for(char c1 : c) {
            System.out.println(c1);
        }
        System.out.println("");
    }
}