The compund symmetry model can be written:

Y_{ij}=\beta_0+\beta_1time_{ij}+\beta_2trt_{ij}+\b eta_3CO_{ij}+b_i+w_{ij}

Say after inputting the SAS code with PROC mixed,

I have the following:
Row Col1 Col2
1 12.5250 8.4750
2 8.4750 12.5250

So which is var(b_i), var(w_{ij})?