int redled=7;
int yelled=8;
int yeltime=500;
int redtime=250;
int redblinks=5;
int yelblinks=3;
int counter;
void setup() {
  // put your setup code here, to run once:
pinMode(redled, OUTPUT);
pinMode(yelled, OUTPUT);
Serial.begin(9600);
}

void loop() {
  // put your main code here, to run repeatedly:
for(counter=0;counter<redblinks;counter++){
digitalWrite(redled, HIGH);
delay(redtime);
digitalWrite(redled, LOW);
delay(redtime);
}
redtime=redtime+150;
for(counter=0;counter<yelblinks;counter++){
digitalWrite(yelled, HIGH);
delay(yeltime);
digitalWrite(yelled, LOW);
delay(yeltime);
}
yeltime=yeltime+100;
}