import java.util.Scanner;

public class Main {
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		char[] S = sc.nextLine().toCharArray();
		long K = sc.nextLong();
		sc.close();
		char a = '1';
		for(int i=0;i<K;i++){
			if(i >= S.length) break;
			if(S[i] != '1'){
				a = S[i];
				break;
			}
		}
		System.out.println(a);

	}

}
/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