import java.util.*;
 
public class Main {
  public static void main(String[] args) {
    Scanner sc = new Scanner(System.in);
    String[] initial = sc.nextLine().split("");
    long K = sc.nextLong();
    long index = 1;
    String answer = "1";
    for (String num: initial) {
      if (num.equals("1") && index < K) {
        index++; 
      } else {
        answer = num;
        break;
      }
    }  
    System.out.println(answer);
  }
}
/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