#include <LiquidCrystal.h>

LiquidCrystal lcd(13, 12, 11, 10, 9, 8);


void setup() {
  
  DDRD = 0b00000000;
  PORTC |= 1<<0;
 DDRC &= ~(1<<0);
 Serial.begin(9600);
}
bool test = true;
int cislo = 0;


void loop() {
  if((PINC& (1<<0)) == 0 && test == true){
    PORTD = 0b00000000;
    test = false;
    cislo = random(0,10);
    lcd.setCursor(0,0);
    lcd.print(cislo);
    Serial.println(cislo);
    
    
      
    }
    else if ((PINC& (1<<0)) == 1 && test == false)
    {
      test = true;
    
     
  }
for (int i = 0; i < cislo; i++ )
  {
    
    PORTD |= 1<<i;
    
    }
    PORTD= 0;
    
}