Suppose your very close friend works in a country called Zuzu, where a cell number is very long number. You want to memorize his/her number:
00444-324-4872-1913-6784-2058
Memorize it! Do not try to find a clue or relation among the digits. Just memorize it normally, even if it takes several minutes or hours to memorize it.
Your memory needs food. This is a small food for it!
