int a = 13;
int b = 12;
int c = 11;
int d = 10;
int e = 9;
int f = 8;
int g = 7;
int dp = 6;

void setup(){
  Serial.begin(9600);
  pinMode(a , OUTPUT);
  pinMode(b , OUTPUT);
  pinMode(c , OUTPUT);
  pinMode(d , OUTPUT);
  pinMode(e , OUTPUT);
  pinMode(f , OUTPUT);
  pinMode(g , OUTPUT);
  pinMode(dp , OUTPUT);
}

void loop(){
 int val = Serial.read() - '0';
 if (val == 0){
   digitalWrite(a , HIGH);
   digitalWrite(b , HIGH);
   digitalWrite(c , HIGH);
   digitalWrite(d , HIGH);
   digitalWrite(e , HIGH);
   digitalWrite(f , HIGH);
   digitalWrite(dp , HIGH);
   delay(1000);
   digitalWrite(a , LOW);
   digitalWrite(b , LOW);
   digitalWrite(c , LOW);
   digitalWrite(d , LOW);
   digitalWrite(e , LOW);
   digitalWrite(f , LOW);
   digitalWrite(dp , LOW);
 }
 if (val == 1){
   digitalWrite(b , HIGH);
   digitalWrite(c , HIGH);
   digitalWrite(dp , HIGH);
   delay(1000);
   digitalWrite(b , LOW);
   digitalWrite(c , LOW);
   digitalWrite(dp , LOW);
 }
 if (val == 2){
   digitalWrite(a , HIGH);
   digitalWrite(b , HIGH);
   digitalWrite(d , HIGH);
   digitalWrite(e , HIGH);
   digitalWrite(g , HIGH);
   digitalWrite(dp , HIGH);
   delay(1000);
   digitalWrite(a , LOW);
   digitalWrite(b , LOW);
   digitalWrite(d , LOW);
   digitalWrite(e , LOW);
   digitalWrite(g , LOW);
   digitalWrite(dp , LOW);
 }
 if (val == 3){
   digitalWrite(a , HIGH);
   digitalWrite(b , HIGH);
   digitalWrite(g , HIGH);
   digitalWrite(c , HIGH);
   digitalWrite(d , HIGH);
   digitalWrite(dp , HIGH);
   delay(1000);
   digitalWrite(a , LOW);
   digitalWrite(b , LOW);
   digitalWrite(g , LOW);
   digitalWrite(c , LOW);
   digitalWrite(d , LOW);
   digitalWrite(dp , LOW);
 }
 if (val == 4){
   digitalWrite(b , HIGH);
   digitalWrite(c , HIGH);
   digitalWrite(f , HIGH);
   digitalWrite(g , HIGH);
   digitalWrite(dp , HIGH);
   delay(1000);
   digitalWrite(b , LOW);
   digitalWrite(c , LOW);
   digitalWrite(f , LOW);
   digitalWrite(g ,LOW);
   digitalWrite(dp , LOW);
 }
 if (val == 5) {
   digitalWrite(a , HIGH);
   digitalWrite(c , HIGH);
   digitalWrite(d , HIGH);
   digitalWrite(f , HIGH);
   digitalWrite(g , HIGH);
   digitalWrite(dp , HIGH);
   delay(1000);
   digitalWrite(a , LOW);
   digitalWrite(c , LOW);
   digitalWrite(d , LOW);
   digitalWrite(f , LOW);
   digitalWrite(g ,LOW);
   digitalWrite(dp , LOW);
 }
 if (val == 6) {
   digitalWrite(a , HIGH);
   digitalWrite(c , HIGH);
   digitalWrite(d , HIGH);
   digitalWrite(e , HIGH);
   digitalWrite(f , HIGH);
   digitalWrite(g , HIGH);
   digitalWrite(dp , HIGH);
   delay(1000);
   digitalWrite(a , LOW);
   digitalWrite(c , LOW);
   digitalWrite(d , LOW);
   digitalWrite(e , LOW);
   digitalWrite(f , LOW);
   digitalWrite(g ,LOW);
   digitalWrite(dp , LOW);
 }
 if (val == 7){
   digitalWrite(a , HIGH);
   digitalWrite(b , HIGH);
   digitalWrite(c , HIGH);
   digitalWrite(dp , HIGH);
   delay(1000);
   digitalWrite(a , LOW);
   digitalWrite(b , LOW);
   digitalWrite(c , LOW);
   digitalWrite(dp , LOW);
 }
 if (val == 8){
   digitalWrite(a , HIGH);
   digitalWrite(b , HIGH);
   digitalWrite(c , HIGH);
   digitalWrite(d , HIGH);
   digitalWrite(e , HIGH);
   digitalWrite(f , HIGH);
   digitalWrite(g , HIGH);
   digitalWrite(dp , HIGH);
   delay(1000);
   digitalWrite(a , LOW);
   digitalWrite(b , LOW);
   digitalWrite(c , LOW);
   digitalWrite(d , LOW);
   digitalWrite(e , LOW);
   digitalWrite(f , LOW);
   digitalWrite(g ,LOW);
   digitalWrite(dp , LOW);
 }
 if (val == 9){
   digitalWrite(a , HIGH);
   digitalWrite(b , HIGH);
   digitalWrite(c , HIGH);
   digitalWrite(d , HIGH);
   digitalWrite(f , HIGH);
   digitalWrite(g , HIGH);
   digitalWrite(dp , HIGH);
   delay(1000);
   digitalWrite(a , LOW);
   digitalWrite(b , LOW);
   digitalWrite(c , LOW);
   digitalWrite(d , LOW);
   digitalWrite(f , LOW);
   digitalWrite(g ,LOW);
   digitalWrite(dp , LOW);
 }
}