is it possible to add two values to a conditional statement switch C#

the fact is that I need to check two variables with a large number of values
, I would like to write something like for a more convenient and clean code:

                switch (a, b)
                {
                    case 0, 0:
                        break;
                    case 0, 1:
                        break;
                    case 0, 2:
                        break;
                    case 0, 3:
                        break;
                    case 1, 0:
                        break;
                    case 1, 1:
                        break;
                    case 1, 2:
                        break;
                    case 1, 3:
                        break;
                }

But that’s the only way it works at the moment:

switch (a)
{
    case 0:
        switch (b)
        {
            case 0:
                break;
            case 1:
                break;
            case 2:
                break;
            case 3:
                break;
        }
        break;
    case 1:
        switch (b)
        {
            case 0:
                break;
            case 1:
                break;
            case 2:
                break;
            case 3:
                break;
        }
        break;
}

I expected that it would be possible to set the values as in the coordinate system

>Solution :

You were thinking in the right direction, and all you had to do was add parentheses to the cases, then the compiler would understand that it was dealing with tuples:

switch (a, b)
{
    case (0, 0):
        break;
    case (0, 1):
        break;
    case (0, 2):
        break;
    case (0, 3):
        break;
    case (1, 0):
        break;
    case (1, 1):
        break;
    case (1, 2):
        break;
    case (1, 3):
        break;
}

If you need to assign something, then you can apply such a construction (starting from C#8):

var str = (a, b) switch
{
    (0, 0) => "A",
    (0, 1) => "B",
    (0, 2) => "C",
    (0, 3) => "D",
    (1, 0) => "E",
    (1, 1) => "F",
    (1, 2) => "G",
    (1, 3) => "H",
    _ => "?"
};