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