def isZhishu?(num)
	count = 2
	whilecount < numdo
		returnfalseif( num % count ) == 0
		count = count + 1
	end

	return true
end

def isHuiwen?(num)
	s = num.to_s.reverse.to_i
	return true ifnum == s

	return false
end

count = 0
10000.times{ |i|
	i = i + 1
	ifisZhishu?(i) && isHuiwen?(i) then
		printf"%4d", i
		print"\n"
		count = count + 1
	end
}

print"\n\nTotal:#{count}"