#define a 5
#define b 4
#define led1 2
#define led2 3
int output=11;

void setup() {
pinMode(a, INPUT);
pinMode(b, INPUT);
pinMode(led1, OUTPUT);
pinMode(led2, OUTPUT);
Serial.begin(9600);
}

void loop() {
digitalWrite(a, LOW);
digitalWrite(b,LOW );

digitalWrite(a, HIGH);
digitalWrite(b,LOW );

digitalWrite(a, LOW);
digitalWrite(b,HIGH);

digitalWrite(a, HIGH);
digitalWrite(b,HIGH);

int x=digitalRead(a);
int y=digitalRead(b);

if (x or y==0)
{
  digitalWrite(led1, LOW);
  digitalWrite(led2, HIGH);
  Serial.println("ouput is 0");
  delay(400);
}
else
{
digitalWrite(led1, HIGH);
digitalWrite(led2, LOW);
Serial.println("output is 1");
delay(400);
}
}