void setup() {
  pinMode(13, INPUT);
  Serial.begin(9600);

}

void loop() {
  
 int button =digitalRead(13);
 delay (100);
 if (button == 1){
  int start = 0;
  Serial.println("Start random value");
  while(start < 20){
    int randomValue = random(0, 100 + 1);
    Serial.println("Value number" +  String(start + 1) +
      "=" +String (randomValue));
    start++;
    delay(100);
    if(start == 20){
      Serial.println("End Of Pelmens");
    }
   }
  }
}