import java.util.*;

public class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        String s = sc.next();
        long k = sc.nextLong();
        String[] sArray = s.split("");
        String firstOther = null;
        for (int i = 0; i < k; i++) {
            if (!sArray[i].equals("1")) {
                firstOther = sArray[i];
                break;
            }
        }
        if (firstOther == null) {
            System.out.println(1);
            return;
        }
        System.out.println(firstOther);
    }
}
/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