import java.util.*;
 
public class Main {
	
    public static void main(String[] args) {
    	Scanner sc = new Scanner(System.in);
    	String S = sc.next();
    	long K = sc.nextLong();
    	int i = 0;
    	for (; i < S.length(); i++) {
    		if (S.charAt(i) == '1') {
    			continue;
    		} else {
    			break;
    		}
    	}
    	if (K <= i) {
    		System.out.println(1);
    	} else {
    		System.out.println(S.charAt(i));
    	}
    }
}
/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