#include<iostream>
#include<cstring>
#include<cstdio>
#include<stack>
using namespace std;
/*************
*计算
*************/
int operate(int a, char op, int b ){
if(op == '+') return a+b;
else if(op == '-') return a-b;
else if(op == '*') return a*b;
else if(op == '/') return a/b;
}
/**************
*比较优先级
**************/
char precede(char a, char b){
if(a=='+' || a=='-'){
if(b=='*' || b=='/' || b=='(') return '<';
else if(b==')' || b=='+'
|| b=='-' || b=='#') return '>';
}
else if(a=='*' || a=='/'){
if(b=='(') return '<';
else if(b=='+' || b=='-' || b=='*'
|| b=='/' || b==')' || b=='#') return '>';
}
else if(a=='('){
if(b=='+' || b=='-' || b=='*'
|| b=='/' || b=='(') return '<';
else if(b==')') return '=';
}
else if(a==')'){
if(b=='+' || b=='-' || b=='*'
|| b=='/' || b=='#' || b==')') return '>';
}
else if(a=='#'){
if(b=='+' || b=='-' || b=='*' ||
b=='/' || b=='#' || b=='(') return '<';
}
}
/**********************
*判断是不是为数字字符
**********************/
bool judge(char a){
if(a>='0' && a<='9')return true;
else return false;
}
/***************
*Main函数
***************/
int main()
{
stack<int>op_n;
stack<char>op_s;
char str, ans;
int num = 0;
bool flag = false;
op_s.push('#');
cin >> str;
while(str!='#' || op_s.top()!='#'){
if(judge(str)){
flag = true;
num = num*10 + (str-'0'); /*处理多位数数据*/
cin >> str;
}else{
if(flag){
flag = false;
op_n.push(num);
num = 0;
}
ans = precede(op_s.top(), str);
if(ans == '<'){
op_s.push(str);
cin>>str;
}
if(ans == '='){
op_s.pop();
cin >> str;
}
if(ans == '>'){
int a;int b;char c;
b = op_n.top();op_n.pop();
a = op_n.top();op_n.pop();
c = op_s.top();op_s.pop();
cout << a << ' ' << c
<< ' ' << b << endl;
op_n.push( operate(a, c, b) );
}
}
}
cout << op_n.top() << endl;
return 0;
}