Ch3 c c ch3 2h2. H2c=ch-ch=c-ch3-ch3. h3c—ch=ch—ch2—ch=ch2. h3c-ch2-ch2-ch2-ch3. h2c-ch2-ch2-h2c.

Ch3 c c ch3 2h2. H2c=ch-ch=c-ch3-ch3. h3c—ch=ch—ch2—ch=ch2. h3c-ch2-ch2-ch2-ch3. h2c-ch2-ch2-h2c.
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