Re:Martha & Mary in John 11

In John 11, both Martha and Mary speak similar things to Jesus: "Lord, if
you'd been here, my brother wouldn't have died."  In all the english
versions I've seen, the sentences are identical.  But in Greek, the word
order is different:

11:21: [Martha] Kyrie, ei Es hOde, ouk an apethanen ho adelphos mou.

11:32: [Mary] Kyrie, ei Es hOde, ouk an mou apethanen ho adelpos.

The 'mou' is in different places.  What nuance does that convey?