First of all - this is clearly illogical task (adding and substracting based on some opacity but ok., not the first task which is here not to prove logic, unfortunatelly I did not find it funny).

Secondly there is issue in this task: Fibonacciho sequence is 0 1 1 2 3 5 8...

But the sequence in this task is: 0 1 2 3 5 8

So the correct opacity:age should be: 1000:0 9999:1 9998:1 9996:2 9994:3 9995:4 9990:5 etc.

So my solution would: 1. Either correct the task (probably not desirable) 2. Add the note that first values are fixed and that the correct Fibonaccioho sequence will start from 2.