import java.util.Scanner;
import java.util.Arrays;
 
public class Main{
    public static void main(String[]args){
      Scanner sc = new Scanner(System.in);
      String s = sc.nextLine();
      Long n = sc.nextLong();
      boolean found = false;
      int ans = 0;
      for(int i = 0;i < Math.min(s.length(),n);i++){
          if(s.charAt(i) != '1'){
              ans = Character.getNumericValue(s.charAt(i));
              found = true;
           	  System.out.println(ans);
              break;
          }
      }
      //sが全て1のとき
      if(!found){System.out.println('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