题解 | #输入n个整数，输出其中最小的k个#

public class Main {
    public static void main(String[] args) {
       Scanner sc=new Scanner(System.in);
        while (sc.hasNext()) {
            String s=sc.next();
            int a=sc.nextInt();
            char[] chars = s.toCharArray();
            for (int i = 0; i < a; i++) {
                System.out.print(chars[i]);
            }
            System.out.println();
        }
    }
}