class Main {
	void main() {
		int A,B,a,b,c,d;
		
		A = 1;
		B = 1;
		
		a = A * (-B);
		b = -A * B;
		c = -(A + B);
		d = -(A * B);
		
		write(a); writeln();
		write(b); writeln();
		write(c); writeln();
      write(d); writeln();
   }
}
