void setup() {
  // put your setup code here, to run once:
  Serial.begin(115200);
}
void getOdd(int n1, int n2) {
  for (int i = n1; i < n2 + 1; i++) {
    if (i % 2 != 0) {
      Serial.print(i);
      Serial.println(": Hello World");
    }
  }
}
void loop() {
  // put your main code here, to run repeatedly:
  delay(10);
  int counter = 0;
  int numbers[2];
  while (counter < 2) {
    if (Serial.available()){
      char buffer[64];
      int bytesRead = Serial.readBytesUntil('\n', buffer, 64);
      buffer[bytesRead] = '\0';
      numbers[counter] = atoi(buffer);
      counter ++;
    }
  }
  getOdd(numbers[0],numbers[1]);
}