char* kk = "AFWNZWPMYMYJLTOK";
String data = "QWERTYUIOPASDFGHJKLZXCVBNMQ0987654321!@#$%^&*()~`[]]";

void setup() {
  // put your setup code here, to run once:
  Serial.begin(115200);
  //
  //Serial.println(hsh(26));

  //Serial.println(inq(data, hsh(26)));

  Serial.println(hsh(1).length());
uint8_t nn[2];

  uint16_t x = 876;
 // u16to8(x, nn);


}

void u16to8(uint16_t x, uint8_t *vv)
{
 vv[0]=x;
 vv[1]=x >> 8;
}
////// EXIT_SUCCESS	successful execution of a program
////// EXIT_FAILURE	unsuccessful execution of a program


String inq(String data, String key) {
  long int le = data.length() + 1 ;
  char a[le] ;
  int kt = 0;
  for (int x = 0; x < le; x++) {
    kt++;
    if (kt == 16) kt = 0;
    a[x] = data[x] + ( (int)key[kt] - 64 ) ;
  } //Serial.println(aa); Serial.println("\t");
  if (deq(a, key) == data)  Serial.println("\tyes");
  return  a;
}

String deq(String data, String key) {
  long int le = data.length()  ;
  char a[le] ;
  int kt = 0;
  for (int x = 0; x < le; x++) {
    kt++;
    if (kt == 16)kt = 0;
    a[x] = data[x] - ( (int)key[kt] - 64);
  } //Serial.println(a);
  return  a;
}

String hsh(int n)
{ String S = "";
  for (int i = 0; i < 16; ++i) {
   // a[i] = (char) + random(65, 90);
    S += String((char) + random(65, 90));
  }
  S[4] = (char)n + 64;

  Serial.println(S);
 // Serial.println(a);
  return  S;
}



void loop() {
  // put your main code here, to run repeatedly:
  delay(1000); // this speeds up the simulation
  //Serial.println(inq(data, hsh(26)));
}