void setup() {
pinMode (1,OUTPUT);
pinMode (2,OUTPUT);
pinMode (3,OUTPUT);
pinMode (4,OUTPUT);
pinMode (5,OUTPUT);
pinMode (6,OUTPUT);
pinMode (7,OUTPUT);
}
void loop() {
//0
digitalWrite (1, LOW);
digitalWrite (2, LOW);
digitalWrite (3, LOW);
digitalWrite (4, LOW);
digitalWrite (5, LOW);
digitalWrite (6, LOW);
digitalWrite (7, HIGH);
delay(1000);

//1
digitalWrite (1, HIGH);
digitalWrite (2, LOW);
digitalWrite (3, LOW);
digitalWrite (4, HIGH);
digitalWrite (5, HIGH);
digitalWrite (6, HIGH);
digitalWrite (7, HIGH);
delay(1000);

//2
digitalWrite (1, LOW);
digitalWrite (2, LOW);
digitalWrite (3, HIGH);
digitalWrite (4, LOW);
digitalWrite (5, LOW);
digitalWrite (6, HIGH);
digitalWrite (7, LOW);
delay(1000);

//3
digitalWrite (1, LOW);
digitalWrite (2, LOW);
digitalWrite (3, LOW);
digitalWrite (4, LOW);
digitalWrite (5, HIGH);
digitalWrite (6, HIGH);
digitalWrite (7, LOW);
delay(1000);

//4
digitalWrite (1, HIGH);
digitalWrite (2, LOW);
digitalWrite (3, LOW);
digitalWrite (4, HIGH);
digitalWrite (5, HIGH);
digitalWrite (6, LOW);
digitalWrite (7, LOW);
delay(1000);

//5
digitalWrite (1, LOW);
digitalWrite (2, HIGH);
digitalWrite (3, LOW);
digitalWrite (4, LOW);
digitalWrite (5, HIGH);
digitalWrite (6, LOW);
digitalWrite (7, LOW);
delay(1000);

//6
digitalWrite (1, LOW);
digitalWrite (2, HIGH);
digitalWrite (3, LOW);
digitalWrite (4, LOW);
digitalWrite (5, LOW);
digitalWrite (6, LOW);
digitalWrite (7, LOW);
delay(1000);

//7
digitalWrite (1, LOW);
digitalWrite (2, LOW);
digitalWrite (3, LOW);
digitalWrite (4, HIGH);
digitalWrite (5, HIGH);
digitalWrite (6, HIGH);
digitalWrite (7, HIGH);
delay(1000);

//8
digitalWrite (1, LOW);
digitalWrite (2, LOW);
digitalWrite (3, LOW);
digitalWrite (4, LOW);
digitalWrite (5, LOW);
digitalWrite (6, LOW);
digitalWrite (7, LOW);
delay(1000);

//9
digitalWrite (1, LOW);
digitalWrite (2, LOW);
digitalWrite (3, LOW);
digitalWrite (4, LOW);
digitalWrite (5, HIGH);
digitalWrite (6, LOW);
digitalWrite (7, LOW);
delay(1000);
}