#include "hardware_dependent.h"

void setup() {
  // put your setup code here, to run once:
  init_port();

}

void loop() {
  // put your main code here, to run repeatedly:
  volatile int x;
  volatile int y;
  volatile long i;
  volatile long j;
  x=input();
  if(x!=0)
  {
  
    while(1)
    {
       y=0b00000001;
       output(y);
       y=0b00000000;
       output(y);
       for(i=0;i<600000;i++);


       
       y=0b00000010;
       output(y);
       y=0b00000000;
       output(y);
       for(i=0;i<600000;i++);




       y=0b00000100;
       output(y);
       y=0b00000000;
       output(y);
       for(i=0;i<600000;i++);




      y=0b00001000;
       output(y);
       y=0b00000000;
       output(y);
       for(i=0;i<600000;i++);




       y=0b00010000;
       output(y);
       y=0b00000000;
       output(y);
       for(i=0;i<600000;i++);




       y=0b00100000;
       output(y);
       y=0b00000000;
       output(y);
       for(i=0;i<600000;i++);



       y=0b01000000;
       output(y);
       y=0b00000000;
       output(y);
       for(i=0;i<600000;i++);


       y=0b10000000;
       output(y);
       y=0b00000000;
       output(y);
       for(i=0;i<600000;i++);


    }
  }
}