import java.util.Scanner;

public class Main {

	public static void main(String[] args) {
	    Scanner scanner = new Scanner(System.in);

	    String S = scanner.next();
	    long K = Long.parseLong(scanner.next());

	    int index = 0;
	    char cr= '1';
	    for (int i=0; i<S.length(); i++) {
	        char c = S.charAt(i);
	        if(c == '1') {
	        	c++;
	        } else {
	        	cr=c;
	        	index=i;
	        	break;
	        }
	    }

        if(K-1 >= index) {
        	System.out.print(cr);
        } else {
        	System.out.print('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