int num[]={0x3F, 0x06, 0x5B, 0x4F, 0x66, 0x6D, 0x7D, 0x07, 0x7F, 0x6F};
int numbershow = 0;


void setup(){
 DDRD = 0xFF;
 PORTD = num[numbershow];
 pinMode(14, INPUT); 
}
void loop(){
  if(digitalRead(14)==HIGH){
    if(numbershow <9){
      numbershow = (numbershow +1)%10;
      PORTD = num[numbershow];
      delay(200);
    }
  }
}