Can't get my board to read inputs from a switch and output on a 7-segment LCD.

Projects Programming
2 
const int A = 1;
const int B = 2;            //assigning the 7 segment display outputs
const int C = 3;
const int D = 4;
const int E = 5;
const int F = 6;
const int G = 7;

const int pin1 = 13;        //Assigning the thumbwheel inputs
const int pin2 = 12;
const int pin3 = 11;
const int pin4 = 10;

void setup() {

  
  pinMode(A, OUTPUT);
  pinMode(B, OUTPUT);               //Declaring the 7 segment display as outputs
  pinMode(C, OUTPUT);
  pinMode(D, OUTPUT);
  pinMode(E, OUTPUT);
  pinMode(F, OUTPUT);
  pinMode(G, OUTPUT);

  pinMode(pin1, INPUT);
  pinMode(pin2, INPUT);              //Declaring the thumbwheel as inputs
  pinMode(pin3, INPUT);
  pinMode(pin4, INPUT);
  

}

void loop()
{
  if (digitalRead (pin1) == LOW,                    // Code to display 0
      digitalRead (pin2) == LOW,
      digitalRead (pin3) == LOW,
      digitalRead (pin4) == LOW)

  {
    digitalWrite(A, LOW);
    digitalWrite(B, LOW);
    digitalWrite(C, LOW);
    digitalWrite(D, LOW);
    digitalWrite(E, LOW);
    digitalWrite(F, LOW);
    digitalWrite(G, HIGH);
   

  }
  else if (digitalRead (pin1) == HIGH,                  // Code to display 1
      digitalRead (pin2) == LOW,
      digitalRead (pin3) == LOW,
      digitalRead (pin4) == LOW)

  {
    digitalWrite(A, LOW);
    digitalWrite(B, LOW);
    digitalWrite(C, HIGH);
    digitalWrite(D, HIGH);
    digitalWrite(E, HIGH);
    digitalWrite(F, HIGH);
    digitalWrite(G, HIGH);
     }
     
  else if (digitalRead (pin1) == LOW,            //Code to display 2
      digitalRead (pin2) == HIGH,
      digitalRead (pin3) == LOW,
      digitalRead (pin4) == LOW)

  {
    digitalWrite(A, LOW);
    digitalWrite(B, LOW);
    digitalWrite(C, HIGH);
    digitalWrite(D, LOW);
    digitalWrite(E, LOW);
    digitalWrite(F, HIGH);
    digitalWrite(G, LOW );
  }
  
  else if (digitalRead (pin1) == HIGH,            //Code to display 3
      digitalRead (pin2) == HIGH,
      digitalRead (pin3) == LOW,
      digitalRead (pin4) == LOW)

  {
    digitalWrite(A, LOW);
    digitalWrite(B, LOW);
    digitalWrite(C, LOW);
    digitalWrite(D, LOW);
    digitalWrite(E, HIGH);
    digitalWrite(F, HIGH);
    digitalWrite(G, LOW );
}
  else if (digitalRead (pin1) == LOW,            //Code to display 4
      digitalRead (pin2) == LOW,
      digitalRead (pin3) == HIGH,
      digitalRead (pin4) == LOW)

  {
    digitalWrite(A, HIGH);
    digitalWrite(B, LOW);
    digitalWrite(C, LOW);
    digitalWrite(D, HIGH);
    digitalWrite(E, HIGH);
    digitalWrite(F, LOW);
    digitalWrite(G, LOW );
}

else if (digitalRead (pin1) == HIGH,            //Code to display 5
      digitalRead (pin2) == LOW,
      digitalRead (pin3) == HIGH,
      digitalRead (pin4) == LOW)

  {
    digitalWrite(A, LOW);
    digitalWrite(B, HIGH);
    digitalWrite(C, LOW);
    digitalWrite(D, LOW);
    digitalWrite(E, HIGH);
    digitalWrite(F, LOW);
    digitalWrite(G, LOW );
  }    
 else if (digitalRead (pin1) == LOW,            //Code to display 6
      digitalRead (pin2) == HIGH,
      digitalRead (pin3) == HIGH,
      digitalRead (pin4) == LOW)

  {
    digitalWrite(A, LOW);
    digitalWrite(B, HIGH);
    digitalWrite(C, LOW);
    digitalWrite(D, LOW);
    digitalWrite(E, LOW);
    digitalWrite(F, LOW);
    digitalWrite(G, LOW);
  }    
 else if (digitalRead (pin1) == LOW,            //Code to display 7
      digitalRead (pin2) == HIGH,
      digitalRead (pin3) == HIGH,
      digitalRead (pin4) == LOW)

  {
    digitalWrite(A, LOW);
    digitalWrite(B, LOW);
    digitalWrite(C, LOW);
    digitalWrite(D, HIGH);
    digitalWrite(E, HIGH);
    digitalWrite(F, HIGH);
    digitalWrite(G, HIGH);
  }    
  else if (digitalRead (pin1) == LOW,            //Code to display 8
      digitalRead (pin2) == HIGH,
      digitalRead (pin3) == HIGH,
      digitalRead (pin4) == LOW)

  {
    digitalWrite(A, LOW);
    digitalWrite(B, LOW);
    digitalWrite(C, LOW);
    digitalWrite(D, LOW);
    digitalWrite(E, LOW);
    digitalWrite(F, LOW);
    digitalWrite(G, LOW);
  }    
  else

  {
    digitalWrite(A, LOW);                //code to display 9
    digitalWrite(B, LOW);
    digitalWrite(C, LOW);
    digitalWrite(D, HIGH);
    digitalWrite(E, HIGH);
    digitalWrite(F, LOW);
    digitalWrite(G, LOW);
  }    
}