void setup() {
  pinMode(12, OUTPUT);
  pinMode(4, INPUT);
  pinMode(5, INPUT);
  pinMode(6, INPUT);
  pinMode(7, INPUT);
  Serial.begin(9600);
}

void loop() {
  digitalWrite(12, LOW); // Turn on pin 12
  delay(100);
  pinMode(4, INPUT);
  pinMode(5, INPUT);
  pinMode(6, INPUT);
  pinMode(7, INPUT);
  // Check conductivity between pin 4 and others
  pinMode(4, OUTPUT);
  digitalWrite(4, HIGH);
  delay(1000);
  int pin5Value = digitalRead(5);
  int pin6Value = digitalRead(6);
  int pin7Value = digitalRead(7);
   int pin4Value = digitalRead(4);
  if (pin5Value == HIGH || pin6Value == HIGH || pin7Value == HIGH) {
    Serial.println("Warning fence bent1");
  }
  pinMode(4, INPUT);

  // Check conductivity between pin 5 and others
  pinMode(5, OUTPUT);
  digitalWrite(5, HIGH);
  delay(1000);
  pin4Value = digitalRead(4);
  pin6Value = digitalRead(6);
  pin7Value = digitalRead(7);
  if (pin4Value == HIGH || pin6Value == HIGH || pin7Value == HIGH) {
    Serial.println("Warning fence bent2");
  }
  pinMode(5, INPUT);

  // Check conductivity between pin 6 and others
  pinMode(6, OUTPUT);
  digitalWrite(6, HIGH);
  delay(1000);
  pin4Value = digitalRead(4);
  pin5Value = digitalRead(5);
  pin7Value = digitalRead(7);
  if (pin4Value == HIGH || pin5Value == HIGH || pin7Value == HIGH) {
    Serial.println("Warning fence bent3");
  }
  pinMode(6, INPUT);

  // Check conductivity between pin 7 and others
  pinMode(7, OUTPUT);
  digitalWrite(7, HIGH);
  delay(1000);
  pin4Value = digitalRead(4);
  pin5Value = digitalRead(5);
  pin6Value = digitalRead(6);
  if (pin4Value == HIGH || pin5Value == HIGH || pin6Value == HIGH) {
    Serial.println("Warning fence bent4");
  }
  Serial.println();

  digitalWrite(12, HIGH); // Turn off pin 12
  delay(1000);

  // Check if pins are not HIGH when pin 12 is HIGH
  if (digitalRead(4) != HIGH || digitalRead(5) != HIGH || digitalRead(6) != HIGH || digitalRead(7) != HIGH) {
    Serial.println("Warning fence destroyed");
  }
}