function lat: Chap 02 p.16 Line 1
function lat: Chap 02 p.19 Line 4
function member: Chap 02 p.23 Line 1
function member: CHap 2 p.29 Line 5
Merge pull request #1 from tayashigenori/chapter02/do_it_do_it_again_and_again_and_again

Chapter02/do it do it again and again and again