Décalage progressif, 1, 2, 3, 4, 5... Mystery Cache

G Q U Q N J H J U O G A H G P L V R V I H L O G R C P O P I S Z M W W M E U B B C U T W M N Z I B R G O E G G I H X F X C K R Q Y S H S F G K X J J K C D S E G O E H G J P N C Z Z G B D H U U B H L Q X L S E E G J V J Y A Z N X E Q R H J D G G B H O P O M H S D G Q X I O E A N Z E Q F H I H F A L X Z C O C R N F W I T T O U B Z E L F E S R U E L O C I C Q A H N R U X V U R H K N F Z G F R T L I W S C I O M C B T F T O I U E S W W O W M P O R X V W L N V A K T H R P P X R R K A Z N M T Z D I P D K W W Y C W R R