[file head]:
TEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exe
... ...

[file tail]:
... ...
TEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exeTEST.exe