I´ve tried looking up an answer but I was unable to deduct from any of those what exactly the issue here is. When I try to verify it says "Expected "," or "..." before numeric constant" and highlights "#define Odvesna"

```cpp
#define A1              35
#define B1              15
#define Odvesna         10
#define Prepona         30       

int O(int A1, int B1) {
    int result;
    result = 2*(A1+B1);
    return result;
}
int S(int A1,int B1) {
    int result;
    result = A1*B1;
    return result;
}
int St(int Odvesna,int Prepona) {
    int result;
    result = Prepona*Odvesna/2;
    return result;
}
int Ot(int Odvesna,int Prepona) {
    int result;
    result = sqrt(pow(Odvesna)+pow(Prepona))+ Odvesna+Prepona;
    return result;
}    
void Vystup(O,S,St) {
    Serial.print("O = ");Serial.println(O);
    Serial.print("S = ");Serial.println(S);
    Serial.print("St = ");Serial.println(St);
    Serial.print("Ot = ");Serial.println(Ot);     

/*******************SETUP**********************************/
void setup() {
    Serial.begin(115200);
    Vystup(O,S,St);  

}
/**************MAIN PROGRAM********************************/
void loop() {
}

```