int numBlinks;
String msg = "How many blinks do you want";
int j;
int bt= 500;
int redPin=12;



void setup() {
  // put your setup code here, to run once:
Serial.begin(9600);
pinMode(rePin;OUTPUT);
}

void loop() {
  // put your main code here, to run repeatedly:
Serial.println(msg);
while(Serial.available()==0){  
}
numBlinks=Serial.parseInt();
for(j=1;j<=numBlinks;j=j+2){
digitalWrite(redPin, HIGH);
delay(bt);
digitalWrite(redPin, LOW);
delay(bt);


}


}