import java.util.Scanner;

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();
		for(int i = 0; i < k; i++) {
			if(c[i]!='1') {
				System.out.println(c[i]);
				System.exit(0);
			}
		}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