int a = 5;
int b = 7;
int pause = 750;
String suma = " + ";
String multi = " x ";
String perimetre = " Perímetre: ";
String area = " Àrea: ";
String igual = " = ";
String doble1 = " 5 x 2 ";
String doble2 = " 7 x 2 ";
String perimetre2 = " Perímetre 2: ";
//String espai = "       ";

void setup() {
Serial.begin(9600);
}

void loop() {

//Perimetre 1:

int P = 2 * a + 2 * b;
Serial.print(perimetre);
Serial.print(a);
Serial.print(suma);
Serial.print(a);
Serial.print(suma);
Serial.print(b);
Serial.print(suma);
Serial.print(b);
Serial.print(igual);
Serial.println(P);
delay (pause);
//Serial.println(espai);

//Perimetre 2:

/*int P2 = 2 * a + 2 * b;
Serial.print(perimetre2);
Serial.print(doble1);
Serial.print(suma);
Serial.print(doble2);
Serial.print(igual);
Serial.println(P2);
delay (pause);
//Serial.println(espai);*/

//Area:

int S = a * b;
Serial.print(area);
Serial.print(a);
Serial.print(multi);
Serial.print(b);
Serial.print(igual);
Serial.println(S);
delay (pause);
//Serial.println(espai);

exit(0);

}