//3 btns
const int Rbtn = 2;
const int Bbtn = 3;
const int Gbtn = 4;

int btnDwn = 0;          //buttonpress
int count = 10;

void setup() {
//3btns
pinMode(Rbtn, INPUT_PULLUP);
pinMode(Bbtn, INPUT_PULLUP);
pinMode(Gbtn, INPUT_PULLUP);

Serial.begin(9600);
}

void loop() {
int rng = random(0, 4); //RNG 1-3

if(btnDwn == 0){       //if no buttons were pressed
  if(digitalRead(Rbtn) == LOW || digitalRead(Bbtn) == LOW || digitalRead(Gbtn) == LOW ){
    btnDwn = 1;
    switch (rng){
      case 1:  //1. possibility
Serial.println("1st");
      break;
      case 2:  //2. possibility
Serial.println("2nd");
      break;
      case 3:  //3. possibility
Serial.println("3rd");
      break;
    }
  }
  //do coundown
  if(count > 1){
  count--;  
  Serial.println(count);
  delay(1000);
  }
}


}