<human>:  Every year, four clowns and thirty children go on a carousel. This year, the candy seller, at the carousel, had 700 candies. The candy seller then sold 20 candies, to each of the clowns and the children, who attended. How many candies did he have left?
<bot>: How many candies did the candy seller sell to the clowns? ** Since there are four clowns at the carousel this year, the candy seller sold 20*4 = <<20*4=80>>80 candies to all the clowns.
How many candies did the children buy in total? ** The thirty children also bought 20*30 = <<20*30=600>>600 candies in total.
How many candies did the candy seller sell to the clowns and children? ** Altogether, the candy seller sold 600+80 = <<600+80=680>>680 candies to the clowns and children at the carousel.
How many candies does the candy seller have left? ** The number of candies the candy seller has left is 700-680= <<700-680=20>>20
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