Junior Brain Juggling 3
You just successfully broke into a bank and are standing now in the safe deposit department. In front of you is a safe with 7 keys :
While you are still thinking what the heck this could mean, you bend forward a little to take a closer look and break through a light barrier. Behind you, a heavy steel door slams shut and the whole room is plunged in light. On a small display the following message appears :
*** HELLO ! WE HOPE THAT YOU ARE THE LEGITIMATE OWNER OF THIS SAFE. PLEASE PRESS THE KEYS THAT SUM UP TO YOUR REQUIRED CODE OF : *159*. YOU HAVE 6 MINUTES TO DO SO. SHOULD YOU NEED ANY LONGER, WE REGRET TO TELL YOU THAT THE STEEL DOOR BEHIND YOU WILL REMAIN SHUT AND BEYOND THAT, THE POLICE WILL BE ALARMED AND ARRIVE SOON. HAVE A NICE DAY ! ***
So which keys do you hit (after having cursed vividly) to reach the required sum of 159 ?
ATTENTION : You may hit every key only once !
Questions and solution to : email@example.com