#include <iostream>
#include <fstream>
#include <string>
#include <cstdlib>
#include <cstdio>

int getparam (std::string input) {
  if(input.size() <= 3) { return -1;}
  int result = 0;
  for (int i = 3; i < input.size(); i++) {
    if ( input[i] < '0' || input[i] > '9') { return -2; }
    result = result * 10;
    result += input[i] - '0';
  }
  return result;
}

std::string getstringparam(std::string input) {
  std::string result;
  for (int i = 3; i < input.size(); i++) {
    result.push_back(input[i]);
  }
  return result;
}

void readpreset( unsigned int values[], std::string & filename ) {
  std::ifstream presetfile ("preset");
  presetfile >> filename;
  for (int i = 0; i < 9; i++ ) { presetfile >> values[i]; }
  presetfile.close();
}

void writepreset( unsigned int values[], std::string filename ) {
  std::ofstream presetfile ("preset");
  presetfile << filename;
  for (int i = 0; i < 9; i++ ) {
    presetfile << values[i];
    presetfile << "\n";
  }
  presetfile.close();
}

void writesh( unsigned int values[], std::string filename ) {
  std::ofstream shfile ("run.sh");
  shfile << "ffmpeg -i " << filename << " -f flv -re ";
  if (values[0] != 0 && values[1] != 0) { shfile << "-s " << values[0] << "x" << values[1] << " "; }
  if (values[2] != 0) { shfile << "-b " <<   values[2] << " "; }
  if (values[3] != 0) { shfile << "-gop " << values[3] << " "; }
  if (values[4] != 0) { shfile << "-r " <<   values[4] << " "; }
  if (values[5] != 0) { shfile << "-ab " <<  values[5] << " "; }
  if (values[6] != 0) { shfile << "-ar " <<  values[6] << " "; }
  shfile << "rtmp://projectlivestream.com/oflaDemo/test";
  shfile.close();
}

int main() {
  unsigned int values[9];
  std::string inputcommand = "";
  bool connection = true;
  int tempresult;
  std::string filename = "";
  readpreset(values, filename);
  while (connection) {
    std::cin >> inputcommand;
    switch (inputcommand[0]) {
      case 'G':
        switch (inputcommand[1]) {
          case 'S':
            switch(inputcommand[2]) {
              case 'H': std::cout << "OK" << values[0] << "\n"; break;
              case 'W': std::cout << "OK" << values[1] << "\n"; break;
              default: std::cout << "ER\n"; break;
            }
            break;
          case 'V':
            switch(inputcommand[2]) {
              case 'B': std::cout << "OK" << values[2] << "\n"; break;
              case 'G': std::cout << "OK" << values[3] << "\n"; break;
              case 'R': std::cout << "OK" << values[4] << "\n"; break;
              default: std::cout << "ER\n"; break;
            }
            break;
          case 'A':
            switch(inputcommand[2]) {
              case 'B': std::cout << "OK" << values[5] << "\n"; break;
              case 'R': std::cout << "OK" << values[6] << "\n"; break;
              default: std::cout << "ER\n"; break;
            }
            break;
          case 'U':
            switch(inputcommand[2]) {
              case 'F': std::cout << "OK" << values[7] << "\n"; break;
              case 'P': std::cout << "OK" << values[8] << "\n"; break;
              default: std::cout << "ER\n"; break;
            }
            break;
          case 'F':
            switch(inputcommand[2]) {
              case 'N': std::cout << "OK" << filename << "\n"; break;
              default: std::cout << "ER\n"; break;
            }
            break;
          default: std::cout << "ER\n"; break;
        }
        break;
      case 'S':
        switch (inputcommand[1]) {
          case 'S':
            switch(inputcommand[2]) {
              case 'H':
                tempresult = getparam(inputcommand);
                if (tempresult < 0) { std::cout << "ER\n"; } else { values[0] = tempresult; std::cout << "OK\n"; }
                break;
              case 'W':
                tempresult = getparam(inputcommand);
                tempresult = getparam(inputcommand);
                if (tempresult < 0) { std::cout << "ER\n"; } else { values[1] = tempresult; std::cout << "OK\n"; }
                break;
              default: std::cout << "ER\n"; break;
            }
            break;
          case 'V':
            switch(inputcommand[2]) {
              case 'B':
                tempresult = getparam(inputcommand);
                if (tempresult < 0) { std::cout << "ER\n"; } else { values[2] = tempresult; std::cout << "OK\n"; }
                break;
              case 'G':
                tempresult = getparam(inputcommand);
                if (tempresult < 0) { std::cout << "ER\n"; } else { values[3] = tempresult; std::cout << "OK\n"; }
                break;
              case 'R':
                tempresult = getparam(inputcommand);
                if (tempresult < 0) { std::cout << "ER\n"; } else { values[4] = tempresult; std::cout << "OK\n"; }
                break;
              default: std::cout << "ER\n"; break;
            }
            break;
          case 'A':
            switch(inputcommand[2]) {
              case 'B':
                tempresult = getparam(inputcommand);
                if (tempresult < 0) { std::cout << "ER\n"; } else { values[5] = tempresult; std::cout << "OK\n"; }
                break;
              case 'R':
                tempresult = getparam(inputcommand);
                if (tempresult < 0) { std::cout << "ER\n"; } else { values[6] = tempresult; std::cout << "OK\n"; }
                break;
              default: std::cout << "ER\n"; break;
            }
            break;
          case 'U':
            switch(inputcommand[2]) {
              case 'F':
                tempresult = getparam(inputcommand);
                if (tempresult < 0) { std::cout << "ER\n"; } else { values[7] = tempresult; std::cout << "OK\n"; }
                break;
              case 'P':
                tempresult = getparam(inputcommand);
                if (tempresult < 0) { std::cout << "ER\n"; } else { values[8] = tempresult; std::cout << "OK\n"; }
                break;
              default: std::cout << "ER\n"; break;
            }
            break;
          case 'F':
            switch(inputcommand[2]) {
              case 'N':
                filename = getstringparam(inputcommand); std::cout << "OK\n";
                break;
              default: std::cout << "ER\n"; break;
            }
            break;
          default: std::cout << "ER\n"; break;
        }
        break;
      case 'C':
        switch (inputcommand[1] ) {
          case 'C':
            switch (inputcommand[2]) {
              case 'D': std::cout << "OK\n"; connection = false; break;
              default: std::cout << "ER\n"; break;
            }
            break;
          case 'S':
            switch (inputcommand[2]) {
              case 'R': std::cout << "OK\n"; readpreset(values, filename); break;
              case 'S': std::cout << "OK\n"; writepreset(values, filename); break;
              case 'A': std::cout << "OK\n"; writesh(values, filename); break;
              default: std::cout << "ER\n"; break;
            }
            break;
          default: std::cout << "ER\n"; break;
        }
        break;
      default: std::cout << "ER\n"; break;
    }
  }
  return 0;
}