Ch3 c c ch3 h2. H3c ch ch ch3. h2c c ch2 ch2 ch3. h3c-ch2-ch(ch3)-ch(ch3)-ch2-ch3. h3c-ch--ch-ch3+h2.

Ch3 c c ch3 h2. H3c ch ch ch3. h2c c ch2 ch2 ch3. h3c-ch2-ch(ch3)-ch(ch3)-ch2-ch3. h3c-ch--ch-ch3+h2.
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