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();
		char[] c = s.toCharArray();
		if (s.length() >= k) {
			for (int i = 0; i < k; i++) {
				if (c[i] != '1') {
					break;
				} else if (i == k - 1) {
					System.out.println(1);
					return;
				}
			}
		}
		for (int i = 0; i < s.length(); i++) {
			if (c[i] != '1') {
				System.out.println(c[i]);
				break;
			}
		}
	}
}
/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