hey everyone, i want to subtract element value of array

```
public int[] meatBallValue;
public int subtractMeatBall;
public int totalValue;
private void Start()
{
meatBallValue[0] = 7;
meatBallValue[1] = 4;
subtractMeatBall = 10;
}
private void Update()
{
totalValue = meatBallValue[0] + meatBallValue[1];
//so totalValue = 11
if (Input.GetKeyDown(KeyCode.Space))
{
//meatBallValue[0 && 1] -= subtractMeatBall;
//how can i to subtract meatBallValue ??
//but i don't want to subtract totalValue, because totalValue is just showing the total value element of array (meatBallValue)
//i want to subtract meatBallValue[] because from this the real value take of
}
}
```

thanks,