#include <iostream>
#include <bits/stdc++.h>

using namespace std;
class File {
    public:
    
    int address;
    int parent;
    string name;
    
    File(string n, int a, int p) {
        name = n;
        address = a;
        parent = p;
    }
};

class HardDrive {
    public:
    static vector<File> files;

    static void add_file(File f) {
        files.push_back(f);
    }

    static int newAddress() {
        return files.size();
    }

    static File getFile(int address) {
        return files[address];
    }
    
};


class textFile: public File {
    public:
    string data;
};

class Folder: public File {

    public: 
    
    vector<int> children;
    
 

    Folder* copy() {
        Folder* f = new Folder(name, HardDrive::newAddress(), parent);
        f->children = children;
        return f;
    }

    int createChild(string name) {
        File* f = new File(name, HardDrive.newAddress());
        f.parent = this.address;
        HardDrive::add_file(f);
        return f.address;
    }
};

vector<string> parseCMD(string cmd) {
    vector <string> tokens; 
    stringstream check1(cmd);
    string intermediate;
    
    while(getline(check1, intermediate, '_'))
    {
        tokens.push_back(intermediate);
    }

    return tokens;
}

int main() {
    cout << ">----OmniOS----<\n" << endl;
    
    string command;
    bool running = true;
    
    while (running) {
        cout << "> ";
        cin >> command;

        vector<string> parts = parseCMD(command);

        if (parts[0] == "end") {
            running = false;
        }

        cout << endl;
    }
    return 0;
}