A function to check whether point P ( x , y ) lies inside the rectangle formed by A ( x1 , y1 ) , B ( x2 , y2 ) , C ( x3 , y3 ) and D ( x4 , y4 )
def check ( x1 , y1 , x2 , y2 , x3 , y3 , x4 , y4 , x , y ) : NEW_LINE