Add everything I got

2b.sh

@@ -0,0 +1,24 @@
+#!/usr/bin/env bash
+
+declare -A A B C
+
+A['X']=3
+A['Y']=4
+A['Z']=8
+
+B['X']=1
+B['Y']=5
+B['Z']=9
+
+C['X']=2
+C['Y']=6
+C['Z']=7
+s=0
+
+while read a b; do
+  declare -n elf=$a
+  declare -n me=$b
+  let s+=$(( ${elf[$b]} ))
+done
+
+echo $s