import java.util.Scanner;

public class main {
public static void main(String args[]) throws Exception {
        Scanner s = new Scanner(System.in);
        int v = Integer.parseInt(s.nextLine());
        int c = Integer.parseInt(s.nextLine());
        if (c != 0 || v != 0) {
            System.out.print(c - 1 + " ");
            System.out.print(v - 1);
        } else {
            System.out.println("Error");
        }
    }
}

v chom oshibka