题解 | #截取字符串#，记录一下做了这么久，终于遇到一道简单的了，哈哈

import java.util.Scanner;

public class Main {
    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        while (in.hasNext()) {
            String s = in.next();
            int i = in.nextInt();
            System.out.println(s.substring(0, i));
        }
    }
}