import java.util.*;

public class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        String s = sc.nextLine();
        long k = getLong(sc.nextLine());

        for(int i = 0;i < k ;i++){
            if(s.charAt(i) != '1'){
                System.out.println(s.charAt(i));
                return;
            }
        }
        System.out.println(1);
        sc.close();
    }
    static int getInt(String val) {
        return Integer.parseInt(val);
    }
    static long getLong(String val) {
        return Long.parseLong(val);
    }
}

/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