import java.util.Scanner;

public class Main {
	static long K;
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		String S = sc.next();
		K = sc.nextLong();

		String s = String.valueOf(S);
		String[] sarray = s.split("");
		String ans = "1";
		for (int i = 0; i < K; i++) {
			if (!sarray[i].equals("1")) {
				ans = (sarray[i]);
				break;
			}
		}
		System.out.println(ans);
	}
}
/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