강의 화면에서 보이는 코드와 다른데 제대로 된 건가요??

작성한 코드 및 에러 메세지

chaeyi@DESKTOP-C83L7HQ MINGW64 ~
$ ssh -i C:\Users\chaeyi\Desktop\chaeyi_mykey.pem ubuntu@3.39.250.56
Warning: Identity file C:UserschaeyiDesktopchaeyi_mykey.pem not accessible: No such file or directory.
The authenticity of host '3.39.250.56 (3.39.250.56)' can't be established.
ED25519 key fingerprint is SHA256:qIB3IeJjPzbgadG9CtUVbwW2xkNtRMfolwakpiNS4XQ.
This key is not known by any other names
Are you sure you want to continue connecting (yes/no/[fingerprint])? yes
Warning: Permanently added '3.39.250.56' (ED25519) to the list of known hosts.
ubuntu@3.39.250.56: Permission denied (publickey).


chaeyi@DESKTOP-C83L7HQ MINGW64 ~
$