literal = gets.chomp.split
if literal[2] == "<" then
    puts literal[0].to_i < literal[1].to_i ? "YES" : "NO"
elsif literal[2] == ">" then
    puts literal[0].to_i > literal[1].to_i ? "YES" : "NO"
elsif literal[2] == "=" then
    puts literal[0].to_i == literal[1].to_i ? "YES" : "NO"
end