import java.util.Scanner;

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

		StringBuilder sb = new StringBuilder();
		
		for (int i = 0; i < K; i++) {
			if (S.charAt(i) == '1') {
				continue;
			}
			System.out.println(S.charAt(i));
			return;
		}
		System.out.println(1);
		scanner.close();
	}
}
/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