1 adding a

     2 adding b

     3 pulling from ../a

     4 searching for changes

     5 warning: repository is unrelated

     6 adding changesets

     7 adding manifests

     8 adding file changes

     9 added 1 changesets with 1 changes to 1 files (+1 heads)

    10 (run 'hg heads' to see heads, 'hg merge' to merge)

    11 1 files updated, 0 files merged, 0 files removed, 0 files unresolved

    12 (branch merge, don't forget to commit)

    13 C b