import java.io.*; import java.math.*; import java.text.*; import java.util.*; import java.util.regex.*; public class Solution { public static void main(String[] args) { Scanner sc = new Scanner(System.in); String str = sc.next(); int k = sc.nextInt(); // substring length String max = str.substring(0, k); String min = str.substring(0, k); for (int i = 0; i 0) { min = str.substring(i, i + k); } } System.out.println(min); System.out.println(max); } }