AA+AA=AA AA+AO=AA,AO AA+OO=AO AO+AO=AA,AO,OO AO+OO=AO,OO BB+BB=BB BB+BO=BB,BO BB+OO=BO,BO BO+BO=BB,BO,OO BO+OO=BO,OO
당신은 어느 그룹입니까?