import java.util.*;

public class Main{
	public static void main(String[] argc){
    	Scanner sc = new Scanner(System.in);
        String s = sc.next();
        String tmp = sc.next();
        long K = Long.parseLong(tmp);

        if(s.length() == 1){
            System.out.println(s);
            return;
        }

        for(int i=0;i<s.length();i++){
            if(s.charAt(i) != '1'){
                if(K < i+1){
                    System.out.println(1);
                    return;
                }else{
                    System.out.println(s.charAt(i));
                    return;
                }
            }
        }

        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