deletions | additions       diff --git a/beginproblem__Consid.tex b/beginproblem__Consid.tex  index 701e8ab..a33e546 100644  --- a/beginproblem__Consid.tex  +++ b/beginproblem__Consid.tex 
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$****0 \: \: + \: \: ****1 \: \: + \: \: ***02$  \\  Where $*$ represents a single digit in a string of $Z$  \\ \\   Therefore, the recurrence relation is  \\  $Z_n = 2Z_{n-1}+Z_{n-2}$