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#include<stdio.h>
#include<stdlib.h>
#include<math.h>
#include<string>
#include<sstream>
#include<iostream>
#include<map>
#include<stack>
using namespace std;
map<char,int>yxj;
stack<long long>number;
stack<char>zf;
void Initialize()
{
    yxj['+']=yxj['-']=0;
    yxj['*']=yxj['/']=1;
    yxj['(']=yxj[')']=-1;
}
void ys(char s)
{
    long long num1=number.top();
    number.pop();
    long long num2=number.top();
    number.pop();
    if(s=='+')
    {
        long long sum=num2+num1;
        number.push(sum);
    }
    if(s=='-')
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