import java.util.Scanner;

public class Main {

	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		String s = sc.next();
		int k = (int)sc.nextLong();
		char[] cset = s.toCharArray();
		for(int i = 0; i < cset.length; i++) {
			if(cset[i] != '1') {
				System.out.println(cset[i]);
				return;
			}
			if(i == k - 1) {
				System.out.println("1");
				return;
			}
		}
	}
}

/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