Coding If Conditions in Arduino [closed]

int leftInput=A0;
int rightInput=A1;
int leftMotor=11;
int rightMotor=10;
int leftValue = 0;
int rightValue = 0;
void setup() {
  pinMode (leftMotor, OUTPUT);
  pinMode (rightMotor, OUTPUT);

}

void loop() {
  leftValue = analogRead (leftInput);
  rightValue= analogRead (rightInput);

  // Part 1
  if ( leftValue < 400 && rightValue < 400)
  {
    digitalWrite (leftMotor, HIGH);
    digitalWrite (rightMotor, HIGH);
  }
  else if ( leftValue < 400 && rightValue > 800 )
  {
    digitalWrite (leftMotor, HIGH);
    digitalWrite (rightMotor, LOW);
  }
  else if ( leftValue > 800 && rightValue < 400)
  {
    digitalWrite (leftMotor, LOW);
    digitalWrite (rightMotor, HIGH);
  }

  // Part 2
  if ( leftValue > 400 && rightValue > 400 && leftValue < 500 && rightValue < 500) 
  {
    analogWrite(leftMotor, 255);
    analogWrite(rightMotor, 255);
  }

  if ( leftValue > 400 && rightValue < 400 && leftValue < 500) 
  {
    analogWrite(leftMotor, 191);
    analogWrite(rightMotor, 191);
  }

  if ( leftValue < 400 && rightValue > 400 && rightValue < 500) 
  {
    analogWrite(leftMotor, 127);
    analogWrite(rightMotor, 127);
  }  

}

In the above Arduino code, Part 2 (Speed of the motors) may have all the 3 conditions false, but I need to make my robot run with the previously know conditions of the Part 2. ie. if

  analogWrite(leftMotor, 127);
  analogWrite(rightMotor, 127);

was the previous decided condition, then even the if the part 1 changed multiple times, the above code should work. Please provide me the solution. Thanks. :)