String evenOrOdd(int number) {
    if (number % 2 == 0) {
        return "even";
          } else {
              return "odd";
                }
                }

                void setup() {
                  Serial.begin(9600);
                    
                      int testNumber1 = 7;
                        int testNumber2 = 12;
                          int testNumber3 = 53;
                          
                            Serial.print(testNumber1);
                              Serial.print(" is ");
                                Serial.println(evenOrOdd(testNumber1));
                                  
                                    Serial.print(testNumber2);
                                      Serial.print(" is ");
                                        Serial.println(evenOrOdd(testNumber2));

                                          Serial.print(testNumber3);
                                            Serial.print(" is ");
                                              Serial.println(evenOrOdd(testNumber3));
                                                }

                                        void loop() {
                                          // Nothing to do here
                                          }