B"The New Year has arrived in the Master's Assistance Center, which means it's time to introduce a new feature! Now students are given distance learning courses, with a total of n courses available. For the i -th distance learning course, a student can receive a grade ranging from x_i to y_i . However, not all courses may be available to each student. Specifically, the j -th student is only given courses with numbers from l_j to r_j , meaning the distance learning courses with numbers l_j, l_j + 1, ldots, r_j . The creators of the distance learning courses have decided to determine the final grade in a special way. Let the j -th student receive grades c_{l_j}, c_{l_j + 1}, ldots, c_{r_j} for their distance learning courses. Then their final grade will be equal to c_{l_j} | c_{l_j + 1} | ldots | c_{r_j} , where | denotes the bitwise OR operation. Since the chatbot for solving distance learning courses is broken, the students have asked for your help. For each of the q students, tell them the maximum final grade they can achieve. Each test consists of multiple test cases. The first line contains a single integer t ( 1 <= q t <= q 2 cdot 10^4 ) -- the number of test cases. The description of the test cases follows. The first line of each test case contains a single integer n ( 1 <= n <= 2 cdot 10^5 ) -- the number of distance learning courses. Each of the following n lines contains two integers x_i and y_i ( 0 <= x_i <= y_i < 2^{30} ) -- the minimum and maximum grade that can be received for the i -th course. The next line contains a single integer q ( 1 <= q <= 2 cdot10^5 ) -- the number of students. Each of the following q lines contains two integers l_j and r_j ( 1 <= l_j <= r_j <= n ) -- the minimum and maximum course numbers accessible to the j -th s"...