public class dangelse {
		public static void main(String argv[]) {
				int a = -1;
				int b = 1;

				if(a < 0)
						if(b < 0)
								System.out.println("a < 0 b < 0");
						else
								System.out.println("a < 0 b >= 0");

				System.out.println("a " + a + " b " + b);

		}
}