void setup() {
pinMode(13, OUTPUT);
pinMode(12, OUTPUT);
pinMode(11, OUTPUT);
pinMode(10, OUTPUT);
pinMode(9, OUTPUT);
pinMode(8, OUTPUT);
}
void loop() {
digitalWrite(13, HIGH);
digitalWrite(12, HIGH);
digitalWrite(11, HIGH);
digitalWrite(10, HIGH);
digitalWrite(9, HIGH);
digitalWrite(8, HIGH);
delay(200);
digitalWrite(13, LOW);
digitalWrite(12, LOW);
digitalWrite(11, LOW);
digitalWrite(10, LOW);
digitalWrite(9, LOW);
digitalWrite(8, LOW);
delay(50);
digitalWrite(13, HIGH);
digitalWrite(12, HIGH);
digitalWrite(11, HIGH);
digitalWrite(10, HIGH);
digitalWrite(9, HIGH);
digitalWrite(8, HIGH);
delay(100);
digitalWrite(13, LOW);
digitalWrite(12, LOW);
digitalWrite(11, LOW);
digitalWrite(10, LOW);
digitalWrite(9, LOW);
digitalWrite(8, LOW);
delay(50);
digitalWrite(13, HIGH);
digitalWrite(12, HIGH);
digitalWrite(11, HIGH);
digitalWrite(10, HIGH);
digitalWrite(9, HIGH);
digitalWrite(8, HIGH);
delay(500);
digitalWrite(13, LOW);
digitalWrite(12, LOW);
digitalWrite(11, LOW);
digitalWrite(10, LOW);
digitalWrite(9, LOW);
digitalWrite(8, LOW);
delay(50);
digitalWrite(13, LOW);
digitalWrite(12, LOW);
digitalWrite(11, LOW);
digitalWrite(10, LOW);
digitalWrite(9, LOW);
digitalWrite(8, LOW);
delay(70);
digitalWrite(13, LOW);
digitalWrite(12, LOW);
digitalWrite(11, LOW);
digitalWrite(10, LOW);
digitalWrite(9, LOW);
digitalWrite(8, LOW);
delay(180);
// The following lines were incomplete in your provided code
// I have completed them based on the variable names you used
int blinkspeed1 =170; // provide a delay of one second
int blinkspeed2 =170; // provide a delay of two seconds
int blinkspeed3 =170; // provide a delay of three seconds
digitalWrite(13, HIGH); // ON STATE
delay(blinkspeed1);
digitalWrite(13, LOW); // OFF STATE
delay(blinkspeed1);
digitalWrite(12, HIGH); // ON STATE
delay(blinkspeed2);
digitalWrite(12, LOW); // OFF STATE
delay(blinkspeed2);
digitalWrite(11, HIGH); // ON STATE
delay(blinkspeed3);
digitalWrite(11, LOW); // OFF STATE
delay(blinkspeed3);
digitalWrite(10, HIGH); // ON STATE
delay(blinkspeed1);
digitalWrite(10, LOW); // OFF STATE
delay(blinkspeed1);
digitalWrite(9, HIGH); // ON STATE
delay(blinkspeed2);
digitalWrite(9, LOW); // OFF STATE
delay(blinkspeed2);
digitalWrite(8, HIGH); // ON STATE
delay(blinkspeed3);
digitalWrite(8, LOW); // OFF STATE
delay(blinkspeed3);
}