1) CH3-CH2-CH(CH3)-CH(CH3)-CH2-CH32) CH3-CH2-CH(CH3)-CH2-CH(CH3)-CH33) CH3-CH2-CH2-CH34) CH3-C(CH3)3-CH2-CH2-CH35) CH3-CH2-CH2-CH(CH3)-CH36) CH3-CH2-C(CH3)2-CH2-CH37) CH3-CH(CH3)-CH2-CH(CH3)-CH2-CH38) CH3-CH2-CH2-CH2-CH39) CH3-C(CH3)2-CH2-CH(CH3)-CH3
1) CH3-CH2-CH(CH3)-CH(CH3)-CH2-CH3
2) CH3-CH2-CH(CH3)-CH2-CH(CH3)-CH3
3) CH3-CH2-CH2-CH3
4) CH3-C(CH3)3-CH2-CH2-CH3
5) CH3-CH2-CH2-CH(CH3)-CH3
6) CH3-CH2-C(CH3)2-CH2-CH3
7) CH3-CH(CH3)-CH2-CH(CH3)-CH2-CH3
8) CH3-CH2-CH2-CH2-CH3
9) CH3-C(CH3)2-CH2-CH(CH3)-CH3