import java.util.Scanner;

public class Main {
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		String s = sc.nextLine();
		final long K = sc.nextLong();
		char[] chars = s.toCharArray();

        for(int i = 0; i < K && i < chars.length; i++) {
            if (chars[i] != '1') {
            	System.out.println(chars[i]);
            	return;
			}
        }
        System.out.println("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