The ü expedient

Here is where your RAM goes:

http://www.nongnu.org/avr-libc/user-manual/FAQ.html#faq_flashstrings

in this is the way to avoid it
http://www.nongnu.org/avr-libc/user-manual/FAQ.html#faq_rom_array

(it's progmem you need in the end ... )
Eberhard