t = int(input()) for _ in range(t): s = list(input()) n = len(s) stack = list() sign = "+" ans = "" for i in range(n): if s[i]=="+": stack.append("+") sign = "+" elif s[i]=="-": stack.append("-") sign = "-" else: if s[i]=="?" and sign=="+": stack.append("9") elif s[i]=="?" and sign=="-": if 0