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();

        System.out.println(solve(S, K));

        sc.close();
    }

    static char solve(String S, long K) {
        for (int i = 0; i < K - 1; ++i) {
            char ch = S.charAt(i);
            if (ch != '1') {
                return ch;
            }
        }

        return S.charAt((int) K - 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