import java.util.Scanner;
 
public class Main{
  public static void main(String[] args){
    Scanner scanner = new Scanner(System.in);
    String S = scanner.next();
    long K = scanner.nextLong();
    char ans = '1';
    for(int i = 0; i < Math.min(S.length(), K); i++){
      if(S.charAt(i)!='1'){
        ans = S.charAt(i);
        break;
      }
    }
    System.out.println(ans);
  }
}
/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