int a = 1; 
int b = 2; 
int c = 3; 
int d = 4; 
int e = 5; 
int f = 6;
int g = 7; 
int point = 8;

void setup() 
{ 
pinMode(a, OUTPUT); //a 
pinMode(b, OUTPUT); //b 
pinMode(c, OUTPUT); //c 
pinMode(d, OUTPUT); //d 
pinMode(e, OUTPUT); //e 
pinMode(f, OUTPUT); //f 
pinMode(g, OUTPUT); //g 
pinMode(point, OUTPUT); //point 
} 
void showNumber(int number) 
{ 
if(number != 1 && number != 4) 
digitalWrite(a,LOW); 
if(number != 5 && number != 6) 
digitalWrite(b,LOW); 
if(number != 2) 
digitalWrite(c,LOW); 
if(number != 1 && number != 4 && number !=7) 
digitalWrite(d,LOW); 
if(number == 2 || number == 6 || number == 8 || 
number == 0) 
digitalWrite(e,LOW); 
if(number != 1 && number != 2 && number != 3 
&& number != 7) 
digitalWrite(f,LOW); 
if (number != 0 && number != 1 && number != 7) 
digitalWrite(g,LOW); 
} 
void turnOff() 
{ 
digitalWrite(a,HIGH); 
digitalWrite(b,HIGH); 
digitalWrite(c,HIGH); 
digitalWrite(d,HIGH); 
digitalWrite(e,HIGH); 
digitalWrite(f,HIGH); 
digitalWrite(g,HIGH); 
digitalWrite(point,HIGH); 
} 
void loop() 
{ 
for(int i=0;i<10;i++) 
{ 
showNumber(i); 
delay(1000); 
turnOff(); 
}}