int pin13=13; //LED to run off pin13
int pin12=12; //LED to run off pin12
int pin11=11; //LED to run off pin11
int pin10=10; //LED to run off pin10
int longW=1000; //delay of 1 sec
int inPin2=2; // red push button pin 2
int inPin3=3; // green push button pin 3
int buttonOld=1;
int LEDState=0;
int buttonNew;
int count=0;
int newCount;




void setup() {

  // put your setup code here, to run once
  
  
  pinMode(pin13, OUTPUT);
  pinMode(pin12, OUTPUT);
  pinMode(pin11, OUTPUT);
  pinMode(pin10, OUTPUT);

  pinMode(inPin2, INPUT);
  pinMode(inPin3, INPUT);






}

void loop() {
  // put your main code here, to run repeatedly:
  if (digitalRead(inPin2)==HIGH);
  { 
    newCount=count+1;
   if (newCount!=count);
   { 
    switch (newCount);
    {
  
  
       
         case 1: digitalWrite(pin13, LOW); // binary count 0
                 digitalWrite(pin12, LOW);
                 digitalWrite(pin11, LOW);
                 digitalWrite(pin10, LOW);
                 delay(longW);
                 break;
 

  

      case 2:
      digitalWrite(pin13, LOW); // binary count 1
      digitalWrite(pin12, LOW);
      digitalWrite(pin11, LOW);
      digitalWrite(pin10, HIGH);
      delay(longW);
      break;


      case 3:
      digitalWrite(pin13, LOW);  // binary count 2
      digitalWrite(pin12, LOW);
      digitalWrite(pin11, HIGH);
      digitalWrite(pin10, LOW);
      delay(longW);
      break;

      case 4:
      digitalWrite(pin13, LOW); // binary count 3
      digitalWrite(pin12, LOW);
      digitalWrite(pin11, HIGH);
      digitalWrite(pin10, HIGH);
      delay(longW);
      break;

      case 5:
      digitalWrite(pin13, LOW);  // binary count 4
      digitalWrite(pin12, HIGH);
      digitalWrite(pin11, LOW);
      digitalWrite(pin10, LOW);
      delay(longW);
      break;
  
      case 6:
      digitalWrite(pin13, LOW);  // binary count 5
      digitalWrite(pin12, HIGH);
      digitalWrite(pin11, LOW);
      digitalWrite(pin10, HIGH);
      delay(longW);
      break;

      case 7:
      digitalWrite(pin13, LOW); // binary count 6
      digitalWrite(pin12, HIGH);
      digitalWrite(pin11, HIGH);
      digitalWrite(pin10, LOW);
      delay(longW);
      break;

      case 8:
      digitalWrite(pin13, LOW); // binary count 7
      digitalWrite(pin12, HIGH);
      digitalWrite(pin11, HIGH);
      digitalWrite(pin10, HIGH);
      delay(longW);
      break;

      case 9:
      digitalWrite(pin13, HIGH); // binary count 8
      digitalWrite(pin12, LOW);
      digitalWrite(pin11, LOW);
      digitalWrite(pin10, LOW);
      delay(longW);
      break;

      case 10:
      digitalWrite(pin13, HIGH); // binary count 9
      digitalWrite(pin12, LOW);
      digitalWrite(pin11, LOW);
      digitalWrite(pin10, HIGH);
      delay(longW);
      break;

      case 11:
      digitalWrite(pin13, HIGH); // binary count 10
      digitalWrite(pin12, LOW);
      digitalWrite(pin11, HIGH);
      digitalWrite(pin10, LOW);
      delay(longW);
      break;

      case 12:
      digitalWrite(pin13, HIGH); // binary count 11
      digitalWrite(pin12, LOW);
      digitalWrite(pin11, HIGH);
      digitalWrite(pin10, HIGH);
      delay(longW);
      break;

      case 13:
      digitalWrite(pin13, HIGH); // binary count 12
      digitalWrite(pin12, HIGH);
      digitalWrite(pin11, LOW);
      digitalWrite(pin10, LOW);
      delay(longW);
      break;

      case 14:
      digitalWrite(pin13, HIGH); // binary count 13
      digitalWrite(pin12, HIGH);
      digitalWrite(pin11, LOW);
      digitalWrite(pin10, HIGH);
      delay(longW);
      break;

      case 15:
      digitalWrite(pin13, HIGH); // binary count 14
      digitalWrite(pin12, HIGH);
      digitalWrite(pin11, HIGH);
      digitalWrite(pin10, LOW);
      delay(longW);
      break;

      case 16:
      digitalWrite(pin13, HIGH); // binary count 15
      digitalWrite(pin12, HIGH);
      digitalWrite(pin11, HIGH);
      digitalWrite(pin10, HIGH);
      delay(longW);

    }
  }
  }
}