HDOJ 2549 壮志难酬

import java.util.Scanner;

public class Main{
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
int t = sc.nextInt();
while(t-->0){
String num = sc.next();
int index = num.indexOf('.');
int n = sc.nextInt();
if (n+index>num.length()-1) {
System.out.println(0);
continue;
}
System.out.println(num.charAt(index+n));
}
sc.close();
}
}