class MFGraph: class Edge: def __init__(self, src, dst, cap, flow): self.src = src self.dst = dst self.cap = cap self.flow = flow class _Edge: def __init__(self, dst: int, cap: int) -> None: self.dst = dst self.cap = cap self.rev = None def __init__(self, n: int) -> None: self._n = n self._g = [[] for _ in range(n)] self._edges = [] def add_edge(self, src: int, dst: int, cap: int) -> int: assert 0 <= src < self._n assert 0 <= dst < self._n assert 0 <= cap m = len(self._edges) e = MFGraph._Edge(dst, cap) re = MFGraph._Edge(src, 0) e.rev = re re.rev = e self._g[src].append(e) self._g[dst].append(re) self._edges.append(e) return m def get_edge(self, i: int) -> Edge: assert 0 <= i < len(self._edges) e = self._edges[i] re = e.rev return MFGraph.Edge( re.dst, e.dst, e.cap + re.cap, re.cap ) def edges(self): return [self.get_edge(i) for i in range(len(self._edges))] def change_edge(self, i: int, new_cap: int, new_flow: int) -> None: assert 0 <= i < len(self._edges) assert 0 <= new_flow <= new_cap e = self._edges[i] e.cap = new_cap - new_flow assert e.rev is not None e.rev.cap = new_flow def flow(self, s: int, t: int, flow_limit = None) -> int: assert 0 <= s < self._n assert 0 <= t < self._n assert s != t if flow_limit is None: flow_limit = sum(e.cap for e in self._g[s]) current_edge = [0] * self._n level = [0] * self._n def fill(arr, value: int) -> None: for i in range(len(arr)): arr[i] = value def bfs() -> bool: fill(level, self._n) queue = [] q_front = 0 queue.append(s) level[s] = 0 while q_front < len(queue): v = queue[q_front] q_front += 1 next_level = level[v] + 1 for e in self._g[v]: if e.cap == 0 or level[e.dst] <= next_level: continue level[e.dst] = next_level if e.dst == t: return True queue.append(e.dst) return False def dfs(lim: int) -> int: stack = [] edge_stack = [] stack.append(t) while stack: v = stack[-1] if v == s: flow = min(lim, min(e.cap for e in edge_stack)) for e in edge_stack: e.cap -= flow assert e.rev is not None e.rev.cap += flow return flow next_level = level[v] - 1 while current_edge[v] < len(self._g[v]): e = self._g[v][current_edge[v]] re = e.rev if level[e.dst] != next_level or re.cap == 0: current_edge[v] += 1 continue stack.append(e.dst) edge_stack.append(re) break else: stack.pop() if edge_stack: edge_stack.pop() level[v] = self._n return 0 flow = 0 while flow < flow_limit: if not bfs(): break fill(current_edge, 0) while flow < flow_limit: f = dfs(flow_limit - flow) flow += f if f == 0: break return flow n = int(input()) if n % 2: exit(print(-1)) N = n // 2 + 1 S = [input() for _ in range(n)] E = {} node = [[] for _ in range(n)] for i in range(n): B = [[]] C = [[0 for _ in range(N)] for _ in range(N)] C[0][0] = 1 for y in range(N): for x in range(y+1): if not C[y][x]: continue if y+1 < N and S[i][y+x] != ")": C[y+1][x] = 1 if x+1 < N and S[i][y+x] != "(": C[y][x+1] = 1 if not C[-1][-1]: exit(print(-1)) C[-1][-1] = 2 for y in range(N-1, -1, -1): for x in range(y, -1, -1): if C[y][x] != 2: continue if y and S[i][y+x-1] != ")" and C[y-1][x]: C[y-1][x] = 2 if x and S[i][y+x-1] != "(" and C[y][x-1]: C[y][x-1] = 2 for y in range(N): for x in range(N): if y < x: C[y][x] = 0 if C[y][x] <= 1: C[y][x] = 0 D = [[[] for _ in range(N)] for _ in range(N)] D[0][0].append("") for le in range(n): cnt = 200 for y in range(le+1): x = le - y if not (0 <= y < N and 0 <= x < N): continue if not C[y][x]: continue for s in D[y][x]: if y+1 < N and S[i][y+x] != ")" and C[y+1][x] and cnt: cnt -= 1 D[y+1][x].append(s+"(") if x+1 < N and S[i][y+x] != "(" and C[y][x+1] and cnt: cnt -= 1 D[y][x+1].append(s+")") for d in D[-1][-1]: if not d in E: E[d] = len(E) ei = E[d] else: ei = E[d] node[i].append(ei) Ei = [""] * len(E) for d in E: Ei[E[d]] = d mf = MFGraph(n+len(E)+2) s = n+len(E) t = s+1 for i in range(n): mf.add_edge(s, i, 1) for j in node[i]: mf.add_edge(i, n+j, 1) for i in range(len(E)): mf.add_edge(n+i, t, 1) ans = mf.flow(s, t, n) if ans < n: print(-1) else: Ans = ["" for _ in range(n)] for e in mf.edges(): if e.flow == 1 and e.src < n: Ans[e.src] = Ei[e.dst-n] for ans in Ans: print(ans)