#define SCAN_DELAY 200
#define LED_PIN_COUNT 6
#define pinsCount i
#define pins 0,1,2,3,4,5

void setup(){ 
 
   }
  // counting the variable i from 0 to 5
        
void loop()
{{byte LED_PINS[] = { 0, 1, 2, 3, 4, 5 };
  for (byte i = 0; i < LED_PIN_COUNT; i++) {
    for (byte j = 0; j < LED_PIN_COUNT; j++) {
      if (i != j) {
        pinMode(LED_PINS[i], OUTPUT);
        pinMode(LED_PINS[j], OUTPUT);
        digitalWrite(LED_PINS[i], LOW);
        digitalWrite(LED_PINS[j], HIGH);
        delay(SCAN_DELAY);
        pinMode(LED_PINS[i], INPUT);
        pinMode(LED_PINS[j], INPUT);
       
       }
      }
    }
  }

  {byte LED_PINS[] = { 5,4,3,2,1,0 };
  for (byte i = 0; i < LED_PIN_COUNT; i++) {
    for (byte j = 0; j < LED_PIN_COUNT; j++) {
      if (i != j) {
        pinMode(LED_PINS[i], OUTPUT);
        pinMode(LED_PINS[j], OUTPUT);
        digitalWrite(LED_PINS[i], LOW);
        digitalWrite(LED_PINS[j], HIGH);
        delay(SCAN_DELAY);
        pinMode(LED_PINS[i], INPUT);
        pinMode(LED_PINS[j], INPUT);
       }
      }
    }

{byte LED_PINS[] = { 3,4,5,0,1,2 };
  for (byte i = 0; i < LED_PIN_COUNT; i++) {
    for (byte j = 0; j < LED_PIN_COUNT; j++) {
      if (i != j) {
        pinMode(LED_PINS[i], OUTPUT);
        pinMode(LED_PINS[j], OUTPUT);
        digitalWrite(LED_PINS[i], LOW);
        digitalWrite(LED_PINS[j], HIGH);
        delay(SCAN_DELAY);
        pinMode(LED_PINS[i], INPUT);
        pinMode(LED_PINS[j], INPUT);
       }
      }
    }
  }
{byte LED_PINS[] = { 2,1,0,3,4,5 };
  for (byte i = 0; i < LED_PIN_COUNT; i++) {
    for (byte j = 0; j < LED_PIN_COUNT; j++) {
      if (i != j) {
        pinMode(LED_PINS[i], OUTPUT);
        pinMode(LED_PINS[j], OUTPUT);
        digitalWrite(LED_PINS[i], LOW);
        digitalWrite(LED_PINS[j], HIGH);
        delay(SCAN_DELAY);
        pinMode(LED_PINS[i], INPUT);
        pinMode(LED_PINS[j], INPUT);
       }
      }
    }
  }
  
}
}