int a = 0;


void setup() {

Serial.begin(115200);

pinMode(7, OUTPUT);
pinMode(6, OUTPUT);
pinMode(5, OUTPUT);
pinMode(4, OUTPUT);
pinMode(3, OUTPUT);
pinMode(2, OUTPUT);
pinMode(1, OUTPUT);




}

void loop() {
a = random(1,70);

Serial.println(a);


if (a < 10){
digitalWrite(7, HIGH);}
else {
digitalWrite(7, LOW);}
if (a > 10 & a < 20){
digitalWrite(6, HIGH);}
else {
digitalWrite(6, LOW);}
if (a > 20 & a < 30){
digitalWrite(5, HIGH);}
else {
digitalWrite(5, LOW);}
if (a > 30 & a < 40){
digitalWrite(4, HIGH);}
else {
digitalWrite(4, LOW);}
if (a > 40 & a < 50){
digitalWrite(3, HIGH);}
else {
digitalWrite(3, LOW);}
if (a > 50 & a < 60){
digitalWrite(2, HIGH);}
else {
digitalWrite(2, LOW);}
if (a > 60){
digitalWrite(8, HIGH);}
else {
digitalWrite(8, LOW);}
delay(1000);







}