void setup() {
  // put your setup code here, to run once:
pinMode (1,OUTPUT ) ;
pinMode (3,OUTPUT ) ;
pinMode (5,OUTPUT ) ;
pinMode (7,OUTPUT ) ;
pinMode (9,OUTPUT ) ;
}

void loop() {
  // put your main code here, to run repeatedly:
digitalWrite (1,HIGH );
delay (300);
digitalWrite (1,LOW ) ;
digitalWrite (3,HIGH );
delay (300);
digitalWrite (3,LOW );
digitalWrite (5,HIGH) ;
delay (300);
digitalWrite (5,LOW );
digitalWrite (7,HIGH) ;
delay (300);
digitalWrite (7,LOW );
digitalWrite (9,HIGH );
delay (300);
digitalWrite (9,LOW );
}