import java.util.Scanner;

class Main{
	public static void main(String[] args){
		Scanner sc = new Scanner(System.in);
		String s = sc.next();
		String k = sc.next();
		int i = 0;
		char ans = '2';
		while(i < s.length()){
			ans = s.charAt(i);
			if(ans != '1')break;
			i++;
		}
		
		if(k.length()>3||Integer.parseInt(k)>i)System.out.println(ans);
		else 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