void setup() {
  // put your setup code here, to run once:
  pinMode(25,OUTPUT);
  pinMode(33,OUTPUT);
  pinMode(32,OUTPUT);
  pinMode(15,OUTPUT);
  pinMode(4,OUTPUT);
  pinMode(2,OUTPUT);
  pinMode(5,OUTPUT);
  pinMode(18,OUTPUT);
  pinMode(19,OUTPUT);
  pinMode(21,OUTPUT);
  pinMode(22,OUTPUT);
  pinMode(23,OUTPUT);
}

void loop()
{
 for(int i=0;i<=7;i++)
 {
  //T1
  if(i==0 || i==3)
  {
   digitalWrite(32,HIGH);
   digitalWrite(23,HIGH);
  }
         else
  {
   digitalWrite(32,LOW);
   digitalWrite(23,HIGH);
  }
  if(i==1 || i==4)
  {
   digitalWrite(25,HIGH);
   digitalWrite(5,HIGH);
  }
         else
  {
   digitalWrite(25,LOW);
   digitalWrite(5,HIGH);
  }
  delay(500);

  //T2
   if(i==0 || i==3)
  {
   digitalWrite(4,HIGH);
   digitalWrite(23,HIGH);
  }
         else
  {
   digitalWrite(4,LOW);
   digitalWrite(23,HIGH);
  }
  if(i==2 || i==5)
  {
   digitalWrite(33,HIGH);
   digitalWrite(18,HIGH);
  }
         else
  {
   digitalWrite(33,LOW);
   digitalWrite(18,HIGH);
  }
  delay(500);

  //T3
  if(i==1 || i==4)
  {
   digitalWrite(21,HIGH);
   digitalWrite(15,HIGH);
  }
         else
  {
   digitalWrite(15,LOW);
   digitalWrite(21,HIGH);
  }
  if(i==0 || i==3)
  {
   digitalWrite(32,HIGH);
   digitalWrite(19,HIGH);
  }
         else
  {
   digitalWrite(32,LOW);
   digitalWrite(19,HIGH);
  }

  //T4
  if(i==2 || i==5)
  {
   digitalWrite(22,HIGH);
   digitalWrite(2,HIGH);
  }
         else
  {
   digitalWrite(22,LOW);
   digitalWrite(2,HIGH);
  }
  if(i==0 || i==3)
  {
   digitalWrite(32,HIGH);
   digitalWrite(19,HIGH);
  }
         else
  {
   digitalWrite(32,LOW);
   digitalWrite(19,HIGH);
  }
  delay(500);
 }
}