asd

#include<iostream>
using namespace std;

pair<int,int> op(string s){
    int a = 10;
    int in = -1;
    for(int i = 1;i<s.length();i++){
        if(a>=3 && s[i] == '/'){
            a = 1;
            in = i;
        }
        else if(a>=3 && s[i] == '*'){
            a = 2;
            in = i;
        }
        else if(a>=5 && s[i] == '+'){
            a = 3;
            in = i;
        }
        else if(a>=5 && s[i] == '-'){
            a = 4;
            in = i;
        }
    }
    return make_pair(a,in);
}
int main(){
    string s;
    cin >> s;
    while(true){
        pair<int,int>p = op(s);
        cout << s << "\n";
        if(p.second == -1){
            break;
        }
        int j = p.second, k = p.second;
        j--; k++;
        int x = 1;
        while(j>=0 && ((s[j]>='0' && s[j]<='9')||(s[j]=='.'))){
            j--;
        }
        x = 1;
        while(k<s.length() && ((s[k]>='0' && s[k]<='9')||(s[k]=='.'))){
            k++;
        }
        float f = 0;
        float a = stof(s.substr(j+1,p.second-j));
        float b = stof(s.substr(p.second+1, k - p.second));
        if(j==0 && s[j]=='-'){
            a = -a;
            j--;
        }
        if(p.first == 1){
            if(b==0){
                cout << "INVALID\n";
                return 0;
            }
            f = a/b;
        }
        else if(p.first == 2)f = a*b;
        else if(p.first == 3)f = a+b;
        else if(p.first == 4)f = a-b;

        string temp = s;
        s = "";
        if(j > -1)s+=temp.substr(0,j+1);
        s+=to_string(f);
        if(k<temp.length())s += temp.substr(k,temp.length()-k);
    }


}