// Purely function declaration
// int myMax2(int, int);
// int myMax2(int m, int n);

void setup() {
  // put your setup code here, to run once:
  Serial.begin(115200);
}

void loop() {
  int a = -10, b = -27;
  int c = -14;

  Serial.println(myMax2(a, b));
  Serial.println(myMax3(a, b, c));

  while (1);
}

// Function definition
int myMax2(int u, int v) {
  int max;

  // if (u > v) {
  if (u >= v) {
    max = u;
  } else {
    max = v;
  }

  return max;
}

int myMax3(int A, int B, int C) {
  return myMax2(myMax2(A, B), C);
}