import java.util.Scanner;

public class Main {
    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        String s = in.next();
        long k = in.nextLong();
        k--;

        for (long i = 0; i < s.length(); i++) {
            if (s.charAt((int)i) != '1') {
                System.out.println(s.charAt((int)i));
                return;
            }

            if (i == k) {
                System.out.println(1);
                return;
            }
        }

        System.out.println(s.charAt(s.length() - 1));
    }
}
/tmp/hf-datasets-cache/medium/datasets/42704881117311-config-parquet-and-info-qiankunmu-Project_CodeNet-896c9d36/hub/datasets--qiankunmu--Project_CodeNet_Python800_and_Java250/snapshots/c899fde44a77ba1cc14973ed3de064e4ff3aadc7/Project_CodeNet_Java250.tar.gz