AC

T = int(input()) for _ in range(T): cmd = str(input()) arr_len = int(input()) arr_ = str(input()) arr_ = arr_[1:-1].split(',') arr = [] flag = 0 for i in range(arr_len): arr.append(int(arr_[i])) location = 0 for i in range(len(cmd)): if cmd[i] == 'R': location = -1 if (location == 0) else (0) elif cmd[i] == 'D': if len(arr) == 0: flag = 1 break arr = arr[1:] if (location == 0) else (arr[0:-1]) if location == -1: arr.reverse() if flag == 1: print("error") else: print(arr) arr.clear() arr_.clear()

T = int(input()) for _ in range(T): cmd = str(input()) arr_len = int(input()) arr_ = str(input()) arr_ = arr_[1:-1].split(',') arr = [] flag = 0 for i in range(arr_len): arr.append(int(arr_[i])) start = 0 end = arr_len -1 for i in range(len(cmd)): if cmd[i] == 'R': start, end = end, start elif cmd[i] == 'D': if len(arr) == 0: flag = 1 break if start < end: start += 1 elif start > end: start -= 1 else: flag = 1 break if flag == 1: print("error") else: if start > end: arr_tmp = arr[end : start + 1] arr_tmp.reverse() print(arr_tmp) elif start < end: print(arr[start : end + 1]) else: print("[]") arr.clear() arr_.clear()