import java.util.Scanner;

public class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        String S = sc.next();
        long K = sc.nextLong();
        int index = -1;
        for (int i = 0; i < S.length(); i++) {
            if (S.charAt(i) != '1') {
                index = i;
                break;
            }
        }
        if (index == -1) {
            System.out.println(1);
        } else {
            if (index > K - 1) {
                System.out.println(1);
            } else {
                System.out.println(String.valueOf(S.charAt(index)));
            }
        }
        sc.close();
    }
}
/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