What is the counterpart of this C pointer programme in C#?

Question

I'd like to know how the following program on pointer written in C can be written in C#, especially how to use the keywords in the C program like &i and *p in C#. Please clarify.

void f(int *p, int *q)
{
    p = q;
    *p = 2;
}

int i = 0, j = 1;

int main()
{
    f(&i, &j);
    printf("%d %d \n", i, j);
    return 0;
}