#include <cstdlib>
#include <iostream>
#include <sstream>

using namespace std;

/*
 *
 */
int main() {
    ostringstream ss;

    ss.str("\E[0m");
    string default_console = ss.str();

    for (int i = 0; i < 16; i++)
    {
        for (int j = 0; j < 16; j++)
        {
            int col = i+j*16;
            ss.str("");
            ss << "\E[0;37m\E[38;05;" << col << "m";

            string color = ss.str();
            cout << default_console << color << col << "\t";
        }
        cout << endl;
    }
    std::cout << "Done" << std::endl;

    return 0;
}