import java.util.Scanner;

public class Main {

	public static void main(String[] args) {
		Scanner in = new Scanner(System.in);
		String s = in.next();
		long k = in.nextLong();
		if(k==1) System.out.println(s.charAt(0));
		else {
			int idx = 0;
			while(s.charAt(idx)=='1' && idx<k-1) idx++;
			System.out.println(s.charAt(idx));
		}
		in.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