for tc in range(1, 11): N = int(input()) dict = {} for _ in range(1, N+1): inp = tuple(input().split()) dict[int(inp[0])] = inp[1:] for idx in range(N, 0, -1): if dict[idx][0].isdigit():# 숫자일때 dict[idx] = int(dict[idx][0]) else:# 사칙 연산일때 if dict[idx][0] == '+': dict[idx] = dict[int(dict[idx][1])]+dict[int(dict[idx][2])] elif dict[idx][0] == '-': dict[idx] = dict[int(dict[idx][1])]-dict[int(dict[..