def binary_or(x, y)
  raise 'Input must only contain positive integers' if x < 0 or y < 0

  "0b" + (x | y).to_s(2)
end

begin
  binary_or(-1, 0)
rescue => e
  puts e.message
end
# Input must only contain positive integers

puts binary_or(1, 1)
# 0b1
puts binary_or(0, 1)
# 0b1
puts binary_or(1024, 1024)
# 0b10000000000
puts binary_or(0, 1023)
# 0b1111111111
puts binary_or(16, 58)
# 0b110010