import java.util.Scanner;

public class Main {

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

		String s = sc.next();
		long k = sc.nextLong();

		char c[] = s.toCharArray();
		int one = 0;
		if (c[0] == '1') {
			while (c[one] == '1') {
				one++;
				if(one==s.length()){

					break;
				}
			}
		}
		long i=one;

		// 1からiまで
if(k<=i){
	System.out.println(1);
}else{
	System.out.println(c[one]);
}
	}
}
/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