[
|
[
|
[
|
ö
|
= 11
|
ö
|
Y
|
ö
|
Ù
|
= ?
|
Ù
|
Y
|
Ù
|
Ù
|
= 11
|
ö
|
ö
|
ö
|
[
|
= 9
|
= 8
|
= 21
|
= 8
|
= 7
|
This is a mathematical challenge, and it's been said that:
* If you're an engineer, you should be able to solve it in (under) three minutes,
* if you're an archit
ect, in three hours;
* if you're a doctor, in six hours;
* if you're an accountant, in three months and
* If you're a lawyer, probably never.