void setup() {
  volatile char *dirf,*dirk,*outf,*ink,b,i;

  dirf=0x30;dirk=0x107;
  *dirf=0xff;*dirk=0x00;
  outf=0x31;ink=0x106;
  int arr[6]={0x77,0x7c,0x39,0x5e,0x79,0x71};
  volatile long g;
     while(1)
     {
      b=*ink;
      for(i=0;i<6;i++)
      {
       *outf=arr[i];
     for(g=1;g<1000000;g++);
        }
     }
}
void loop() {
}