These are the packages that would be merged, in order:

Calculating dependencies ... done!
Dependency resolution took 1.50 s (backtrack: 0/20).

[ebuild     UD ] sys-devel/bc-1.08.1::gentoo [1.08.2::gentoo] USE="readline -libedit -static" 448 KiB

Total: 1 package (1 downgrade), Size of downloads: 448 KiB