int digit [10] [7] = {
                       { 1,1,1,1,1,1,0  },//0
                       { 0,1,1,0,0,0,0  },//1
                       { 1,1,0,1,1,0,1  },//2
                       { 1,1,1,1,0,0,1  },//3
                       { 0,1,1,0,0,1,1  },//4
                       { 1,0,1,1,0,1,1  },//5
                       { 1,0,1,1,1,1,1  },//6
                       { 1,1,1,0,0,1,0  },//7
                       { 1,1,1,1,1,1,1  },//8
                       { 1,1,1,1,0,1,1  },//9
                                             };
int x,y;
int counter ;  

void setup()
{
 for(x=0;x<=8;x++)
  {pinMode(x,OUTPUT);}
   digitalWrite(7, HIGH);
   digitalWrite(8, HIGH);
}

void loop() 
{
  counter = 47 ;
  digitalWrite(7, LOW);

  for(y=0;y<=6;y++)
   { digitalWrite(y,digit[counter/10][y]);}
     delay(20);
      digitalWrite(7, HIGH);
      digitalWrite(8, HIGH);

  for(y=0;y<=6;y++)
   { digitalWrite(y,digit[counter%10][y]); }
     delay(20);
    digitalWrite(8, HIGH  );
}