import java.util.Scanner;

public class Main {
	public static void main(String[] args) {
		Scanner in = new Scanner(System.in);
		
		int n = in.nextInt();
		int i = 0;
		while(i!=n){
            int a = in.nextInt();
            int b = in.nextInt();
            String s = String.valueOf(a-b);
            if(s.charAt(0)=='-'){
                System.out.println((char)(60));
            }
            else if(s.charAt(0)=='0'){
                System.out.println((char)(61));
            }
            else System.out.println((char)(62));
            i++;
        } 
		
	}
}