int DT1=1;
int DT2=2;
int buzzPin=12;
int j;
void setup() {
  // put your setup code here, to run once:
pinMode(buzzPin, OUTPUT);
tone(8,262,250);
}

void loop() {
  // put your main code here, to run repeatedly:
for(j=1;j<=100;j=+1)
  digitalWrite(buzzPin, HIGH);
  delay(DT1);
  digitalWrite(buzzPin, LOW);
  delay(DT1);
for(j=1;j<=100;j=+1);
  digitalWrite(buzzPin, HIGH);
  delay(DT2);
  digitalWrite(buzzPin, LOW);
  delay(DT2);
}