Bash Puzzle 6-28-2020

#Address: 0xc644EB912c7619db5f66587a8a8f2A6ecd3d8C97
declare -a a;
b=0
x=$1
y=$2
z=$3
while IFS= read -r -n1 c; do
  c=$(printf "%01x" $(( (($y*0x$c) + $z) % $x)))
  a[$b]="$c";
  b=$(($b+1));
done < ./privateKey

p="";
for (( i=0; i <= $(((${#a[@]} / 2))); i++ )); do
  [[ $i == 0 ]] && p+="${a[$((${#a[@]} / 2))]}" && continue;
  l=${a[$(((${#a[@]} / 2) - i))]};
  r=${a[$(((${#a[@]} / 2) + i))]};
  p+="$l$r";
done;
echo "#PrivateKey = $p" >> $0
#PrivateKey = 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This looks like garbo

Agreed