#include<iostream.h>
class Stack
    {
    private:
        char *stack;
        int p;
    public:
        Stack(int max=100)
            {stack= new char[max]; p=0;}
        ~Stack()
            {delete stack;}
        inline void push(char v)
            { stack[p++]=v;}
        inline char pop()
            {return stack[--p];}
        inline int empty()
            {return !p;}
    };
void main()
    {
    char c;
    Stack save(50);
    //int x;
    while(cin.get(c))
        {
    //    x=0;
        
        if(c == '*')
            save.push(c);
        if(c == ')')
            cout.put(save.pop());
        if(c == '+')
            save.push(c);
            while(c>='0' && c<= '9')
            {
            cout.put(c);
            cin.get(c);
            }
        if(c !='(') cout<<' ';
        }
    cout<<'\n';
    }
문법에 맞게 안나오는데 왜인지 알려주실래요../???