Sam, Sara, Cora, Jace, Chase, Sally, Jack, Jacob, Mea, Alex, Lex, Sophie, Gavin, Coco, Lara, Stacy, Asia, Amie, Lulu, and Lea each had 6 balloons in their hands. As they were walking 3 balloons of each hands flew away. How many balloons do they have in their hands now?