int relayout[4] = {2,3,4,5};

void setup() 
{
Serial.begin(9600);
for(int i = 0;i < 4; i++)
{
  pinMode(relayout[i], OUTPUT);
}
}

void loop() 
{
for(int i = 0;i < 4; i++)
{
  Serial.print("relay num: ");
  Serial.println(i+1);
  digitalWrite(relayout[i], HIGH);
  Serial.print("delay time: ");
  Serial.println((analogRead(A0)+977));
  delay(analogRead(A0)+977);
  digitalWrite(relayout[i], LOW);
  delay(200);
}
}