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;
    while (i < S.length() && S.charAt(i) == '1') {
      i++;
    }
    if (i == S.length() || 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