N, M = gets.split.map(&:to_i)
a=gets.split.map(&:to_i)
b=gets.split.map(&:to_i)
counts={}

(0...a.size).each{|i|
    counts[b[i]] ||=0
    counts[b[i]] += a[i]
}
#puts counts.join(",");

if counts[0]==counts.values.max
    puts "YES"
else
    puts "NO"
end