How to check if 3 files exist,and them delete'em

[silent]

Hi,im on second level of my game,and i need to check if 3 files exist,and if they exist the program has to delete them and has to make a new one.

I have tried this :

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if exist "name1" &if exist "name2" &if exist "name3" del "name1" &del "name2" &del "name3" &echo s > file.txt

The program just closes itself.

Ive also tried this :

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if exist "name1","name2" (..) del "name1",(..) &echo s > file.txt

It also failed...

[!k]

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if exist "name1" if exist "name2" if exist "name3" (del "name1" "name2" "name3" &echo s > file.txt)