#47 The Set basics.
#47 The Set basics.
ehpc/katas,tddbin/katas,tddbin/katas,cmisenas/katas,rafaelrocha/katas,cmisenas/katas,Semigradsky/katas,ehpc/katas,ehpc/katas,rafaelrocha/katas,tddbin/katas,cmisenas/katas,rafaelrocha/katas,Semigradsky/katas,JonathanPrince/katas,JonathanPrince/katas,JonathanPrince/katas,Semigradsky/katas