import sys read = sys.stdin.buffer.read readline = sys.stdin.buffer.readline readlines = sys.stdin.buffer.readlines class BinaryIndexedTree(): def __init__(self, seq): self.size = len(seq) self.depth = self.size.bit_length() self.build(seq) def build(self, seq): data = seq size = self.size for i, x in enumerate(data): j = i + (i & (-i)) if j < size: data[j] += data[i] self.data = data def __repr__(self): return self.data.__repr__() def get_sum(self, i): data = self.data s = 0 while i: s += data[i] i -= i & -i return s def add(self, i, x): data = self.data size = self.size while i < size: data[i] += x i += i & -i def find_kth_element(self, k): data = self.data size = self.size x, sx = 0, 0 dx = 1 << (self.depth) for i in range(self.depth - 1, -1, -1): dx = (1 << i) if x + dx >= size: continue y = x + dx sy = sx + data[y] if sy < k: x, sx = y, sy return x + 1 N = int(readline()) m = map(int, read().split()) X1, Y1, X2, Y2 = zip(*zip(m, m, m, m)) def solve(X, Y): U = 20000 + 10 bit = BinaryIndexedTree([0] * U) H = [0] * U INF = 10**9 H[0] = INF for x, y in zip(X, Y): pts = bit.get_sum(U - 1) n = bit.get_sum(x - 1) if n == pts: base = 0 else: base = H[bit.find_kth_element(n + 1)] if y <= base: yield 0 continue if not H[x]: bit.add(x, 1) H[x] = y now_x = x area = 0 while True: prev_x = bit.find_kth_element(n) if n > 0 else 0 area += (now_x - prev_x) * (y - base) now_x = prev_x base = H[now_x] if base > y: break H[now_x] = 0 bit.add(now_x, -1) n -= 1 yield area X1 = [-x for x in X1] Y1 = [-x for x in Y1] answer = [0] * N for i, x in enumerate(solve(X1, Y1)): answer[i] += x for i, x in enumerate(solve(X1, Y2)): answer[i] += x for i, x in enumerate(solve(X2, Y1)): answer[i] += x for i, x in enumerate(solve(X2, Y2)): answer[i] += x print('\n'.join(map(str, answer)))