//Ipins
int button1 = 2;
int button2 = 3;

//Opins
int LED1 = 12;
int LED2 = 13;

//variables
int T = 500; //swored is intervali romlis gasvlis 
             //shemdegac shen ginda rom chaqvres diodebi tu xeli geqneba dacherili knopkaze

void setup ()
{
  //pinMode
  pinMode (button1,INPUT);
  pinMode (button2,INPUT);
  pinMode (LED1,OUTPUT);
  pinMode (LED2,OUTPUT);
}

void reset ()
{
  digitalWrite(LED1,LOW);
  digitalWrite(LED2,LOW);
}

void LEDControl (int num)
{
  switch(num)
  {
    case 1:
      reset ();
      digitalWrite(LED1,HIGH);
      break;
    case 2:
      reset();
      digitalWrite(LED2,HIGH);
      break;
    case 3:
      reset ();
      digitalWrite(LED1,HIGH);
      digitalWrite(LED2,HIGH);
      break;
    case 4:
      reset();
      break;
  }
}

void MP (int pin1 , int pin2)
{
  if (digitalRead (pin1) == HIGH)  { LEDControl(1);  }
  if (digitalRead (pin2) == HIGH)  {  LEDControl(2);  }
  if (digitalRead (pin1) == HIGH && digitalRead(pin2) == HIGH)  {
    LEDControl(3);
    delay (T);
    if (digitalRead (pin1) == HIGH && digitalRead(pin2) == HIGH)  {  
	LEDControl(4);
	delay (100); 
	 }
    else
    {}
  }
   
}

void loop ()
{
  MP(button1,button2);
}