uint8_t arr[] = {10, 239, 156, 187, 43, 431};

char* kk = "5ibcdef0123456789s23456";
String he = "98CDAC23EC98";
String heq = "98";
uint8_t u8 ;
void setup() {
  // put your setup code here, to run once:
  Serial.begin(115200);
  //Serial.println( arr[1]);
  // in_mac(arr, arr, kk) ;
  // Serial.println( arr[1]);

  Serial.println("-------------");
  //de_mac(arr, arr, kk)  ;

  String stringOne = "1230-987-6-[12,[323],34]";
  // substring(index) looks for the substring from the index position to the end:

  int  for_n_device = stringOne.substring(0, 4).toInt();
  int  case_n = stringOne.substring(5, 8).toInt();
  int  enqreption = stringOne.substring(9, 10).toInt();


  Serial.println(for_n_device );
  Serial.println(case_n);
  Serial.println(enqreption);
  stringOne.remove(0, 11);

 
  Serial.println( stringOne);  
}




template <typename T>
boolean in_mac(const T& input, uint8_t* Output, char* key) {
  //char aa[7] ;
  //key.toCharArray(aa, 7);
  for (int o = 0; o < 6; o++) {
    Output[o] = input[o] + (int)key[o];
  }
  return true;
}

template <typename T>
boolean de_mac(const T& input, uint8_t* Output, char* key) {
  //char aa[7] ;
  //key.toCharArray(aa, 7);
  for (int o = 0; o < 6; o++) {
    Output[o] = input[o] - (int)key[o];
  }
  return true;
}




void loop() {
  // put your main code here, to run repeatedly:
  delay(10); // this speeds up the simulation
}