//9,press one by one 1,4,7,9 key and blink 8 th LED (15 - 09 - 22)
void setup() {
  // put your setup code here, to run once:
    volatile long x,j,i,y;
    volatile char *dirf,*dirk,*dirh;
    volatile char *outf,*ink,*inh;
    dirf = 0x30; dirk = 0x107; dirh = 0x101;
    *dirf = 0xff; *dirk = 0x00; *dirh = 0x00;
    outf = 0x31; ink = 0x106; inh = 0x100;
    while(1)
    {
      x = *ink;
      y = *inh;
      if(((((x & 0x01) == 0x01) || (x & 0x10) == 0x10)|| (x & 0x80 ) == 0x80 ) || (y & 0x02) == 0x02)
      {
    
          *outf = 0x80;
          for(j=0;j<1000000;j++);
      }    
          else
          {
          *outf = 0x00;
          }       
      
    
    }
}
    
   
    
void loop() {
  // put your main code here, to run repeatedly:

}