diff --git a/anagrams.tlv b/anagrams.tlv
index b48d5c4..d4ffc81 100644
--- a/anagrams.tlv
+++ b/anagrams.tlv
@@ -236,6 +236,7 @@
     >end
 - __teliva_timestamp: original
   count_letters:
+    >-- TODO: handle unicode
     >function count_letters(s)
     >  local result = {}
     >  for i=1,s:len() do
@@ -248,6 +249,21 @@
     >  end
     >  return result
     >end
+- __teliva_timestamp: original
+  count:
+    >-- turn an array of elements into a map from elements to their frequency
+    >-- analogous to count_letters for non-strings
+    >function count(a)
+    >  local result = {}
+    >  for i, v in ipairs(a) do
+    >    if result[v] == nil then
+    >      result[v] = 1
+    >    else
+    >      result[v] = result[v] + 1
+    >    end
+    >  end
+    >  return result
+    >end
 - __teliva_timestamp: original
   union:
     >function union(a, b)
@@ -488,8 +504,8 @@
     >function count_anagrams(s)
     >  local result = factorial(s:len())
     >  local letter_counts = count_letters(s)
-    >  for k, v in pairs(letter_counts) do
-    >    result = result / factorial(v)
+    >  for l, cnt in pairs(letter_counts) do
+    >    result = result / factorial(cnt)
     >  end
     >  return result
     >end
diff --git a/break.tlv b/break.tlv
index 34cbe78..36041e6 100644
--- a/break.tlv
+++ b/break.tlv
@@ -236,6 +236,7 @@
     >end
 - __teliva_timestamp: original
   count_letters:
+    >-- TODO: handle unicode
     >function count_letters(s)
     >  local result = {}
     >  for i=1,s:len() do
@@ -248,6 +249,21 @@
     >  end
     >  return result
     >end
+- __teliva_timestamp: original
+  count:
+    >-- turn an array of elements into a map from elements to their frequency
+    >-- analogous to count_letters for non-strings
+    >function count(a)
+    >  local result = {}
+    >  for i, v in ipairs(a) do
+    >    if result[v] == nil then
+    >      result[v] = 1
+    >    else
+    >      result[v] = result[v] + 1
+    >    end
+    >  end
+    >  return result
+    >end
 - __teliva_timestamp: original
   union:
     >function union(a, b)
diff --git a/gemini.tlv b/gemini.tlv
index 96a7b03..f661a21 100644
--- a/gemini.tlv
+++ b/gemini.tlv
@@ -236,6 +236,7 @@
     >end
 - __teliva_timestamp: original
   count_letters:
+    >-- TODO: handle unicode
     >function count_letters(s)
     >  local result = {}
     >  for i=1,s:len() do
@@ -248,6 +249,21 @@
     >  end
     >  return result
     >end
+- __teliva_timestamp: original
+  count:
+    >-- turn an array of elements into a map from elements to their frequency
+    >-- analogous to count_letters for non-strings
+    >function count(a)
+    >  local result = {}
+    >  for i, v in ipairs(a) do
+    >    if result[v] == nil then
+    >      result[v] = 1
+    >    else
+    >      result[v] = result[v] + 1
+    >    end
+    >  end
+    >  return result
+    >end
 - __teliva_timestamp: original
   union:
     >function union(a, b)
diff --git a/graphviz.tlv b/graphviz.tlv
index 0bdd67b..18fb7e0 100644
--- a/graphviz.tlv
+++ b/graphviz.tlv
@@ -236,6 +236,7 @@
     >end
 - __teliva_timestamp: original
   count_letters:
+    >-- TODO: handle unicode
     >function count_letters(s)
     >  local result = {}
     >  for i=1,s:len() do
@@ -248,6 +249,21 @@
     >  end
     >  return result
     >end
+- __teliva_timestamp: original
+  count:
+    >-- turn an array of elements into a map from elements to their frequency
+    >-- analogous to count_letters for non-strings
+    >function count(a)
+    >  local result = {}
+    >  for i, v in ipairs(a) do
+    >    if result[v] == nil then
+    >      result[v] = 1
+    >    else
+    >      result[v] = result[v] + 1
+    >    end
+    >  end
+    >  return result
+    >end
 - __teliva_timestamp: original
   union:
     >function union(a, b)
diff --git a/life.tlv b/life.tlv
index e35fd59..eba123f 100644
--- a/life.tlv
+++ b/life.tlv
@@ -236,6 +236,7 @@
     >end
 - __teliva_timestamp: original
   count_letters:
+    >-- TODO: handle unicode
     >function count_letters(s)
     >  local result = {}
     >  for i=1,s:len() do
@@ -248,6 +249,21 @@
     >  end
     >  return result
     >end
+- __teliva_timestamp: original
+  count:
+    >-- turn an array of elements into a map from elements to their frequency
+    >-- analogous to count_letters for non-strings
+    >function count(a)
+    >  local result = {}
+    >  for i, v in ipairs(a) do
+    >    if result[v] == nil then
+    >      result[v] = 1
+    >    else
+    >      result[v] = result[v] + 1
+    >    end
+    >  end
+    >  return result
+    >end
 - __teliva_timestamp: original
   union:
     >function union(a, b)
diff --git a/template.tlv b/template.tlv
index 586b640..829c4ab 100644
--- a/template.tlv
+++ b/template.tlv
@@ -236,6 +236,7 @@
     >end
 - __teliva_timestamp: original
   count_letters:
+    >-- TODO: handle unicode
     >function count_letters(s)
     >  local result = {}
     >  for i=1,s:len() do
@@ -248,6 +249,21 @@
     >  end
     >  return result
     >end
+- __teliva_timestamp: original
+  count:
+    >-- turn an array of elements into a map from elements to their frequency
+    >-- analogous to count_letters for non-strings
+    >function count(a)
+    >  local result = {}
+    >  for i, v in ipairs(a) do
+    >    if result[v] == nil then
+    >      result[v] = 1
+    >    else
+    >      result[v] = result[v] + 1
+    >    end
+    >  end
+    >  return result
+    >end
 - __teliva_timestamp: original
   union:
     >function union(a, b)
diff --git a/toot-toot.tlv b/toot-toot.tlv
index b03d209..375d503 100644
--- a/toot-toot.tlv
+++ b/toot-toot.tlv
@@ -236,6 +236,7 @@
     >end
 - __teliva_timestamp: original
   count_letters:
+    >-- TODO: handle unicode
     >function count_letters(s)
     >  local result = {}
     >  for i=1,s:len() do
@@ -248,6 +249,21 @@
     >  end
     >  return result
     >end
+- __teliva_timestamp: original
+  count:
+    >-- turn an array of elements into a map from elements to their frequency
+    >-- analogous to count_letters for non-strings
+    >function count(a)
+    >  local result = {}
+    >  for i, v in ipairs(a) do
+    >    if result[v] == nil then
+    >      result[v] = 1
+    >    else
+    >      result[v] = result[v] + 1
+    >    end
+    >  end
+    >  return result
+    >end
 - __teliva_timestamp: original
   union:
     >function union(a, b)
diff --git a/zet.tlv b/zet.tlv
index b3d1c90..fcc66a8 100644
--- a/zet.tlv
+++ b/zet.tlv
@@ -236,6 +236,7 @@
     >end
 - __teliva_timestamp: original
   count_letters:
+    >-- TODO: handle unicode
     >function count_letters(s)
     >  local result = {}
     >  for i=1,s:len() do
@@ -248,6 +249,21 @@
     >  end
     >  return result
     >end
+- __teliva_timestamp: original
+  count:
+    >-- turn an array of elements into a map from elements to their frequency
+    >-- analogous to count_letters for non-strings
+    >function count(a)
+    >  local result = {}
+    >  for i, v in ipairs(a) do
+    >    if result[v] == nil then
+    >      result[v] = 1
+    >    else
+    >      result[v] = result[v] + 1
+    >    end
+    >  end
+    >  return result
+    >end
 - __teliva_timestamp: original
   union:
     >function union(a, b)