def solution(board, coordinates): for coord in coordinates: x, y = coord[0] - 1, coord[1] - 1 for i in range(19): board[x][i] = 1 - board[x][i] board[i][y] = 1 - board[i][y] return board board = [] for i in range(19): temp_board = list(map(int, input().split())) board.append(temp_board) n = int(input()) for _ in range(n): x, y = map(int, input().split()) board = solution(board, [(x, y)]) for i i..