/* package whatever; // don't place package name! */
 
import java.util.*;
import java.lang.*;
import java.io.*;
 
/* Name of the class has to be "Main" only if the class is public. */
class Ideone
{
	public static void main (String[] args) throws java.lang.Exception
	{
		// your code goes here
	}
}

LyogcGFja2FnZSB3aGF0ZXZlcjsgLy8gZG9uJ3QgcGxhY2UgcGFja2FnZSBuYW1lISAqLwoKaW1wb3J0IGphdmEudXRpbC4qOwppbXBvcnQgamF2YS5sYW5nLio7CmltcG9ydCBqYXZhLmlvLio7CgovKiBOYW1lIG9mIHRoZSBjbGFzcyBoYXMgdG8gYmUgIk1haW4iIG9ubHkgaWYgdGhlIGNsYXNzIGlzIHB1YmxpYy4gKi8KY2xhc3MgSWRlb25lCnsKCXB1YmxpYyBzdGF0aWMgdm9pZCBtYWluIChTdHJpbmdbXSBhcmdzKSB0aHJvd3MgamF2YS5sYW5nLkV4Y2VwdGlvbgoJewoJCS8vIHlvdXIgY29kZSBnb2VzIGhlcmUKCX0KfQ==

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

int red = 8;  
int yellow = 7;  
int green = 6;  
int sensor = 2;  
int sensorState = 0;  

void setup() {  
  pinMode(red, OUTPUT);  
  pinMode(yellow, OUTPUT);  
  pinMode(green, OUTPUT);  
  pinMode(sensor, INPUT);  
}  

void loop() {  
  sensorState = digitalRead(sensor);  

  if (sensorState == HIGH) {  
    digitalWrite(green, HIGH);  
    digitalWrite(red, LOW);  
    digitalWrite(yellow, LOW);  // Ensure yellow is off
    delay(5000);  
    digitalWrite(green, LOW);   // Turn off green after its delay
  } else {  
    digitalWrite(green, LOW);  
    digitalWrite(yellow, HIGH);  
    delay(2000);  
    digitalWrite(yellow, LOW);  // Turn off yellow before red turns on
    digitalWrite(red, HIGH);  
    delay(5000);  
  }  
}