import java.util.Scanner;
public class Main{
	public static void main(String[] args){
		Scanner sc = new Scanner(System.in);
		String s=sc.next();
		long k=sc.nextLong();
		for(int i=0; i<s.length(); i++){
			if(s.charAt(i)!='1'){
				System.out.println(s.charAt(i));
				return;
			}else{
				if(k==i+1){
					System.out.println("1");
					return;
				}
			}
		}
	}
}

/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