serial3

int a = 5;              // creates int a, b, c
int b = 10;
int c = 20;

void setup()                    // setup
{
  Serial.begin(9600);           // set up Serial library at 9600 bps

  Serial.println("Here is some math: ");

  Serial.print("a = ");
  Serial.println(a);
  Serial.print("b = ");
  Serial.println(b);
  Serial.print("c = ");
  Serial.println(c);

  Serial.print("a + b = ");       // add
  Serial.println(a + b);

  Serial.print("a * c = ");       // multiply
  Serial.println(a * c);
  
  Serial.print("c / b = ");       // divide
  Serial.println(c / b);
  
  Serial.print("b - c = ");       // subtract
  Serial.println(b - c);
}

void loop()                     // empty loop
{
}