#!/usr/bin/ruby
def dfs(a)
	return to_enum(:dfs,a) if !block_given?
	yield a[0] if a.size<2
	(a.size-1).times{|i|
		dfs(a[0..i]){|l|
			dfs(a[i+1..-1]){|r|
				yield l+r
				yield l-r
				yield l*r
				yield l.is_a?(Rational) || r.is_a?(Rational) ? l/r : Rational(l,r) if r!=0
			}
		}
	}
end

n,*a=`dd`.split.map(&:to_i)
(3..n).each{|q|
	a.permutation(q){|b|
		dfs(b).each{|e|
			if e==0
				puts :YES
				exit
			end
		}
	}
}
puts :NO