int gnd[] = {13,12,11,10,9,8,7,6};
int vcc[] = {5,4,3,2,A3,A4,A1,A2};
int A[1][8] = {
{1,1,1,1,1,1,1,1},
{1,1,0,0,0,0,1,1},
{1,1,0,0,0,0,1,1},
{1,1,0,0,0,0,1,1},
{1,1,1,1,1,1,1,1},
{1,1,0,0,0,0,1,1},
{1,1,0,0,0,0,1,1},
{1,1,0,0,0,0,1,1},
};

void setup(){
  digitalWrite(13, OUTPUT);
  digitalWrite(12, OUTPUT);
  digitalWrite(11, OUTPUT);
  digitalWrite(10, OUTPUT);
  digitalWrite(9, OUTPUT);
  digitalWrite(8, OUTPUT);
  digitalWrite(7, OUTPUT);
  digitalWrite(6, OUTPUT);

  digitalWrite(5,OUTPUT);
  digitalWrite(4,OUTPUT);
  digitalWrite(3,OUTPUT);
  digitalWrite(2,OUTPUT);
  digitalWrite(A4,OUTPUT);
  digitalWrite(A3,OUTPUT);
  digitalWrite(A2,OUTPUT);
  digitalWrite(A1,OUTPUT);
}

void loop(){

   for(byte i = 0;i<8;i++){
       for(byte j = 0;j<=7;j++){
           digitalWrite(gnd[i], LOW);
           digitalWrite(vcc[j], HIGH);
           

       }

   }

}