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namespace std; using inti 3 using void; using timet; using d bool; 10 define auto 11 define do enum 12 define false 13 define de true 14 define "evil" 15 define L ::make shared 16. define virtual 1 define Discout 18 define trendl 19 templatesclass 20 using 3 Orivector; 21 templateclass using shared ptr si i. 180 return Strand() W() return 20 struct " 4 Y 29 struct 30 struct struct 32 struct struct struct return