n, z = gets.split.map(&:to_i)
if n >= 3
  puts :No
else
  dpn = Array.new(z + 1){|i| i ** n }
  ans = (1 ... z).find{|x| dpn[z] - dpn[x] == dpn.bsearch{|v| v >= dpn[z] - dpn[x] } }
  puts ans ? :Yes : :No
end