import java.util.Scanner;

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 < K && i < S.length()){
      if(S.charAt(i) != '1'){
        System.out.println(S.charAt(i));
        System.exit(0);
      }else{
        i++;
      }
    }
    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