CH3-CH(CH3)-CH2-CH2-CH(CH3)-CH2-CH(CH3)-CH2-CH2-CH3
CH3-CH2-CH2-CH2-CH2-CH2-CH2-CH2-CH2-CH2-CH(CH2CH3)-CH(CH2CH3)-CH(CH2CH3)-CH(CH2CH3)-CH3
CH3-CH2-CH2-C(CH3)(CH3)-CH(CH2CH3)-CH(CH2CH3)-CH2-CH2-CH2-CH3
CH3-CH(CH3)-CH2-CH2-CH(CH3)-CH2-CH(CH3)-CH2-CH2-CH3
CH3-CH2-CH2-CH2-CH2-CH2-CH2-CH2-CH2-CH2-CH(CH2CH3)-CH(CH2CH3)-CH(CH2CH3)-CH(CH2CH3)-CH3
CH3-CH2-CH2-C(CH3)(CH3)-CH(CH2CH3)-CH(CH2CH3)-CH2-CH2-CH2-CH3