Can use Perl and C in a program?

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<div dir=3D"ltr"><div>How can I implement these two languages of programmin=
g in a program?</div><div><br></div><div>What part of the program uses Perl=
 and C?</div><div><br></div><div>Different repositories of Github use many =
languages of programming in a project but a program only uses a language of=
 programming. <br></div><div><br></div><div><span class=3D"gmail_signature_=
prefix">-- </span><br><div dir=3D"ltr" class=3D"gmail_signature" data-smart=
mail=3D"gmail_signature"><br>With kindest regards, William.<br><br>=E2=A2=
=80=E2=A3=B4=E2=A0=BE=E2=A0=BB=E2=A2=B6=E2=A3=A6=E2=A0=80 <br>=E2=A3=BE=E2=
=A0=81=E2=A2=A0=E2=A0=92=E2=A0=80=E2=A3=BF=E2=A1=81 Debian - The universal =
operating system<br>=E2=A2=BF=E2=A1=84=E2=A0=98=E2=A0=B7=E2=A0=9A=E2=A0=8B=
=E2=A0=80 <a href=3D"https://www.debian.org" target=3D"_blank">https://www.=
debian.org</a><br>=E2=A0=88=E2=A0=B3=E2=A3=84=E2=A0=80=E2=A0=80=E2=A0=80=E2=
=A0=80 <br><br><br></div></div></div>

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