#include <iostream>
using namespace std;

int main() {
    char username[] = "carlos";
    string cmd = "reg add HKEY_LOCAL_MACHINE\\Software\\Microsoft\\Windows\\CurrentVersion\\Run /t REG_SZ /v formula /d C://users//";
    cmd += username;
    cmd += "//downloads//formula.exe";
   
    cout<<cmd.c_str()<<endl;
    return 0;
}