int tem=40;
void setup() {
  // put your setup code here, to run once:
for (int i=1; i<10; i++) {
  pinMode(i, OUTPUT);
}
}

void loop() {
  // put your main code here, to run repeatedly:
if (tem>35){
  for(int j=1; j<10; j++){
  digitalWrite(j, HIGH); 
}
}
delay(5000);
for (int j=1; j<10; j++){
  digitalWrite(j, LOW);

}
delay(5000);
}