What is the condensed structural formula of 2,2-dichloro-3-hexyne?

Condensed structural formula of 2,2-dichloro-3-hexyne with labeled carbon and chlorine atoms.

Condensed structural formula of 2,2-dichloro-3-hexyne with a different representation of carbon and chlorine atoms.

Condensed structural formula of 2,2-dichloro-3-hexyne showing carbon and chlorine atom connections.

Condensed structural formula of 2,2-dichloro-3-hexyne highlighting the arrangement of atoms.