I have a function F, function of four other f functions, as shown below (1, 2, 3, 4 are indices here not numbers)

F = f{1}*f{2}*f{3}*f{4}

I want to create a table using this function such that for each (i, j)th element f{i}, f{j} and other f elements are replaced by functions X, Y and Z respectively. Replacing f{i} and f{j} is easy as follows, but I am not able to figure out how to represent "indices other than i and j" in this function.

G = Table[F/.{f{i} -> X, f{j} -> Y}, {i, 1, 4}, {j, 1, 4}]

Will appreciate any help. thanks