human
Colton had 72 dolphin stickers. He gave 4 stickers each to 3 friends. He also gave his friend Mandy 2 more than he gave his three friends total.  And he gave Justin 10 less than Mandy. How many stickers does Colton have left?
assistant
How many stickers did Colton give away? ** Colton gave away 4 stickers * 3 friends = <<4*3=12>>12 stickers.
How many stickers did Colton give Mandy? ** Colton gave Mandy 2 + 12 stickers = <<2+12=14>>14 stickers.
How many stickers did Colton give Justin? ** Colton gave Justin 14 stickers - 10 = <<14-10=4>>4 stickers.
How many stickers did Colton give away? ** In total, Colton gave away 12 + 14 + 4 stickers = <<12+14+4=30>>30 stickers.
How many stickers does Colton have left? ** Colton's number of total stickers at the end is 72 - 30 = <<72-30=42>>42 stickers.
#### 42