wrong answer

a = int(input())
points = [[int(x) for x in input().split()] for i in range(a)]
choosen = [int(x) for x in input().split()]
point_to_swap = []
for ch_point_pos in choosen:
    ch_point = points[ch_point_pos - 1]
    x_points = {}
    y_points = {}
    x = 0
    y = 0
    for pos, point in enumerate(points):
        if point[0] == ch_point[0] and point[1] != ch_point[1]:
            x_points[ch_point[1] - point[1]] = pos
        if point[1] == ch_point[1] and point[0] != ch_point[0]:
            y_points[ch_point[0] - point[0]] = pos
    if x_points and y_points:
        if abs(max(x_points.keys(), key=abs)) > abs(max(y_points.keys(), key=abs)) or abs(
                max(x_points.keys(), key=abs)) == abs(max(y_points.keys(), key=abs)):
            a = max(x_points.keys(), key=abs)
            if a in x_points.keys() and -a in x_points.keys():
                point_to_swap = -a
            else:
                point_to_swap = a
            x = 1
        else:
            a = max(y_points.keys(), key=abs)
            if a in y_points.keys() and -a in y_points.keys():
                point_to_swap = -a
            else:
                point_to_swap = a
            y = 1
    elif x_points:
        a = max(x_points.keys(), key=abs)
        if a in x_points.keys() and -a in x_points.keys():
            point_to_swap = -a
        else:
            point_to_swap = a
        x = 1
    elif y_points:
        a = max(y_points.keys(), key=abs)
        if a in y_points.keys() and -a in y_points.keys():
            point_to_swap = -a
        else:
            point_to_swap = a
        y = 1
    if x == 1:
        points[ch_point_pos - 1][1] -= point_to_swap * 2
    elif y == 1:
        points[ch_point_pos - 1][0] -= point_to_swap * 2
num_point = [int(x) for x in input().split()]
if not points[num_point[0] - 1][0] == points[num_point[1] - 1][0] and not points[num_point[0] - 1][1] == \
                                                                         points[num_point[1] - 1][1]:
    print(abs(points[num_point[0] - 1][0] - points[num_point[1] - 1][0]) * abs(points[num_point[0] - 1][1] - points[num_point[1] - 1][1]))
else:
    print(0)