import java.util.*;
 
public class Main{
     public static void main(String[] args){
        Scanner sc = new Scanner(System.in);
	    String S = sc.next();
	    long K = sc.nextLong();
        int oneCount = 0;
        String ans = null;
    for(int i = 0; i < S.length();i++){
    	if("1".equals(S.substring(i,(i+1)))){
          oneCount += 1;
          continue;
        }
      break;
  	}
    
    if(oneCount >= K){ans = "1";
    }else{ ans = S.substring(oneCount,(oneCount+1));}
    
    System.out.println(ans);
    }
}
/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