import java.util.Scanner;
public class dmopc19c1p2 {
	public static StringBuilder f(int N) {
		if (N==0) {
			return new StringBuilder("Good writing is good writing is good writing.");
		} else {
			StringBuilder S = f(N-1);
			StringBuilder newS = new StringBuilder("Good writing is good ")
					.append(S)
					.append(" writing is good ").append(S).append(" is good writing.");
			S = null;
			return newS;
		}
	}
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		int q = sc.nextInt();
		for (int i=0; i<q; i++) {
			int n = sc.nextInt();
			int k = sc.nextInt();
			StringBuilder S = f(n);
			if (S.length()<k) {
				System.out.println(".");
			} else {
				System.out.println(S.charAt(k-1));
			}
		}

	}

}