a = input().strip() b = {'[':'(',']':')','{':'(','}':')'} # 创建栈 stack = [] for i in a : if i not in b.keys(): stack.append(i) else : stack.append(b[i]) print(int(eval(''.join( j for j in stack))))
a = input().strip() b = {'[':'(',']':')','{':'(','}':')'} # 创建栈 stack = [] for i in a : if i not in b.keys(): stack.append(i) else : stack.append(b[i]) print(int(eval(''.join( j for j in stack))))