It set a point with co-ordinates х and y. Define, in what co-ordinate quarter it is located.
In a unique line through a blank 2 material numbers - co-ordinates of a point are set, value of co-ordinates on the module do not exceed 100.
The singular is the number of a corresponding quarter, or 0 if unequivocally define a quarter it is impossible.
Input example #1
Output example #1