A & B pillar trim screws location??

[jpwalt1987]

I am going back together with the ole buick and I cant remember which screws went where on the A & B pillar trim. This car has T-tops. There are 2 kinds of screws used here. One is about 1/4 inch long and has a really small head on it that is kind of rounded. The other is about 3/8 inch long and has a wider flat head. Both are black. On both pillars there are 2 trim pieces, one stacked on the other. Do the longer flat headed screws go on the first or second trim piece? Can anyone give me a idea about this??