Incomprehensible formula and its result

there is a task to find the value of a function

for an unordered set of 128 bit numbers Ak each of which is represented as

Ak = 2^96 * a1k + 2^64 * a2k + 2^32 * a3k + 2^0 * a4k ,

Where

0 <= aik <= 2^32 - 1

and log10(X) is the integer part of the decimal logarithm of X ,

and we will assume that log10(0) = 0

and N <= 5000

example:

 2 // N - кол-во чисел этого набора 0 0 0 2324 // коеффициенты aik для текущего Ak 0 2332 0 0 

Amount value - 44

Questions:

1. How did 44 turn out in this example ??
2. What does an unordered set of numbers mean in this context?
3. It is not clear how indexation takes place in the sum - I understand that k != j ?? as if it were equal then what sense would you say to a number with yourself, because it would give 0 and the logarithm from zero would also be 0

actually, for this example, I got the following

  A0 - 0 0 0 2324 A1 - 0 2332 0 0 A0 XOR A1 = 0 2332 0 2324 тогда X = 2^96*0 + 2^64+2332 + 2^32*0 + 2^0+2324 = 4.301780718×10²² но отсюда log10(X) != 44 

what am I doing wrong ?

What is the correct algorithm that would produce 44?