int led1 = 13;
int led2 = 12;
int led3 = 11;
int led4 = 10;
int led5 = 9;
int led6 = 8;
int led7 = 7;
int led8 = 6;
int led9 = 5;
int led10 = 4;
int tempo = 1000;


void setup() {
pinMode(led1, OUTPUT);
pinMode(led2, OUTPUT);
pinMode(led3, OUTPUT);
pinMode(led4, OUTPUT);
pinMode(led5, OUTPUT);
pinMode(led6, OUTPUT);
pinMode(led7, OUTPUT);
pinMode(led8, OUTPUT);
pinMode(led9, OUTPUT);
pinMode(led10, OUTPUT);
}

void loop() { 
digitalWrite(led1, HIGH);
digitalWrite(led2, HIGH);
delay(1000);
digitalWrite(led3, HIGH);
digitalWrite(led4, HIGH);
delay(1000);
digitalWrite(led5, HIGH);
digitalWrite(led6, HIGH);
delay(1000);
digitalWrite(led7, HIGH);
digitalWrite(led8, HIGH);
delay(1000);
digitalWrite(led9, HIGH);
digitalWrite(led10, HIGH);
delay(1000);
digitalWrite(led10, LOW);
delay(500);
digitalWrite(led9, LOW);
delay(500);
digitalWrite(led8, LOW);
delay(500);
digitalWrite(led7, LOW);
delay(500);
digitalWrite(led6, LOW);
delay(500);
digitalWrite(led5, LOW);
delay(500);
digitalWrite(led4, LOW);
delay(500);
digitalWrite(led3, LOW);
delay(500);
digitalWrite(led2, LOW);
delay(500);
digitalWrite(led1, LOW);
delay(1000);


digitalWrite(led1, HIGH);
digitalWrite(led3, HIGH);
digitalWrite(led5, HIGH);
digitalWrite(led7, HIGH);
digitalWrite(led9, HIGH);
delay(500);
digitalWrite(led1, LOW);
digitalWrite(led3, LOW);
digitalWrite(led5, LOW);
digitalWrite(led7, LOW);
digitalWrite(led9, LOW);
delay(500);
digitalWrite(led2, HIGH);
digitalWrite(led4, HIGH);
digitalWrite(led6, HIGH);
digitalWrite(led8, HIGH);
digitalWrite(led10, HIGH);
delay(500);
digitalWrite(led2, LOW);
digitalWrite(led4, LOW);
digitalWrite(led6, LOW);
digitalWrite(led8, LOW);
digitalWrite(led10, LOW);
delay(500);
digitalWrite(led1, HIGH);
digitalWrite(led3, HIGH);
digitalWrite(led5, HIGH);
digitalWrite(led7, HIGH);
digitalWrite(led9, HIGH);
digitalWrite(led2, HIGH);
digitalWrite(led4, HIGH);
digitalWrite(led6, HIGH);
digitalWrite(led8, HIGH);
digitalWrite(led10, HIGH);
delay(500);
digitalWrite(led1, LOW);
digitalWrite(led10, LOW);
delay(150);
digitalWrite(led2, LOW);
digitalWrite(led9, LOW);
delay(150);
digitalWrite(led3, LOW);
digitalWrite(led8, LOW);
delay(150);
digitalWrite(led4, LOW);
digitalWrite(led7, LOW);
delay(150);
digitalWrite(led5, LOW);
digitalWrite(led6, LOW);
delay(150);
digitalWrite(led1, HIGH);
digitalWrite(led10, HIGH);
delay(150);
digitalWrite(led2, HIGH);
digitalWrite(led9, HIGH);
delay(150);
digitalWrite(led3, HIGH);
digitalWrite(led8, HIGH);
delay(150);
digitalWrite(led4, HIGH);
digitalWrite(led7, HIGH);
delay(150);
digitalWrite(led5, HIGH);
digitalWrite(led6, HIGH);
delay(150);
digitalWrite(led1, LOW);
digitalWrite(led10, LOW);
delay(150);
digitalWrite(led2, LOW);
digitalWrite(led9, LOW);
delay(150);
digitalWrite(led3, LOW);
digitalWrite(led8, LOW);
delay(150);
digitalWrite(led4, LOW);
digitalWrite(led7, LOW);
delay(150);
digitalWrite(led5, LOW);
digitalWrite(led6, LOW);
delay(150);
digitalWrite(led1, HIGH);
digitalWrite(led10, HIGH);
delay(150);
digitalWrite(led2, HIGH);
digitalWrite(led9, HIGH);
delay(150);
digitalWrite(led3, HIGH);
digitalWrite(led8, HIGH);
delay(150);
digitalWrite(led4, HIGH);
digitalWrite(led7, HIGH);
delay(150);
digitalWrite(led5, HIGH);
digitalWrite(led6, HIGH);
delay(150);
digitalWrite(led1, LOW);
digitalWrite(led10, LOW);
delay(150);
digitalWrite(led2, LOW);
digitalWrite(led9, LOW);
delay(150);
digitalWrite(led3, LOW);
digitalWrite(led8, LOW);
delay(150);
digitalWrite(led4, LOW);
digitalWrite(led7, LOW);
delay(150);
digitalWrite(led5, LOW);
digitalWrite(led6, LOW);
delay(150);
digitalWrite(led1, HIGH);
digitalWrite(led10, HIGH);
delay(150);
digitalWrite(led2, HIGH);
digitalWrite(led9, HIGH);
delay(150);
digitalWrite(led3, HIGH);
digitalWrite(led8, HIGH);
delay(150);
digitalWrite(led4, HIGH);
digitalWrite(led7, HIGH);
delay(150);
digitalWrite(led5, HIGH);
digitalWrite(led6, HIGH);
delay(150);
digitalWrite(led1, LOW);
digitalWrite(led10, LOW);
delay(150);
digitalWrite(led2, LOW);
digitalWrite(led9, LOW);
delay(150);
digitalWrite(led3, LOW);
digitalWrite(led8, LOW);
delay(150);
digitalWrite(led4, LOW);
digitalWrite(led7, LOW);
delay(150);
digitalWrite(led5, LOW);
digitalWrite(led6, LOW);
delay(150);
digitalWrite(led1, HIGH);
digitalWrite(led10, HIGH);
delay(150);
digitalWrite(led2, HIGH);
digitalWrite(led9, HIGH);
delay(150);
digitalWrite(led3, HIGH);
digitalWrite(led8, HIGH);
delay(150);
digitalWrite(led4, HIGH);
digitalWrite(led7, HIGH);
delay(150);
digitalWrite(led5, HIGH);
digitalWrite(led6, HIGH);
delay(150);
digitalWrite(led1, LOW);
digitalWrite(led10, LOW);
delay(150);
digitalWrite(led2, LOW);
digitalWrite(led9, LOW);
delay(150);
digitalWrite(led3, LOW);
digitalWrite(led8, LOW);
delay(150);
digitalWrite(led4, LOW);
digitalWrite(led7, LOW);
delay(150);
digitalWrite(led5, LOW);
digitalWrite(led6, LOW);
delay(150);
}