diff --git a/config.json b/config.json
index 36014ae..9b781bd 100644
--- a/config.json
+++ b/config.json
@@ -271,6 +271,14 @@
           "logic"
         ]
       },
+      {
+        "slug": "line-up",
+        "name": "Line Up",
+        "uuid": "759c4de8-cfb4-4846-af7e-468c40601f7c",
+        "practices": [],
+        "prerequisites": [],
+        "difficulty": 2
+      },
       {
         "slug": "luhn",
         "name": "Luhn",
diff --git a/exercises/practice/line-up/.docs/instructions.md b/exercises/practice/line-up/.docs/instructions.md
new file mode 100644
index 0000000..fb41d4c
--- /dev/null
+++ b/exercises/practice/line-up/.docs/instructions.md
@@ -0,0 +1,19 @@
+# Instructions
+
+Given a name and a number, your task is to produce a sentence using that name and that number as an [ordinal numeral][ordinal-numeral].
+Yaʻqūb expects to use numbers from 1 up to 999.
+
+Rules:
+
+- Numbers ending in 1 (except for 11) → `"st"`
+- Numbers ending in 2 (except for 12) → `"nd"`
+- Numbers ending in 3 (except for 13) → `"rd"`
+- All other numbers → `"th"`
+
+Examples:
+
+- `"Mary", 1` → `"Mary, you are the 1st customer we serve today. Thank you!"`
+- `"John", 12` → `"John, you are the 12th customer we serve today. Thank you!"`
+- `"Dahir", 162` → `"Dahir, you are the 162nd customer we serve today. Thank you!"`
+
+[ordinal-numeral]: https://en.wikipedia.org/wiki/Ordinal_numeral
diff --git a/exercises/practice/line-up/.docs/introduction.md b/exercises/practice/line-up/.docs/introduction.md
new file mode 100644
index 0000000..ea07268
--- /dev/null
+++ b/exercises/practice/line-up/.docs/introduction.md
@@ -0,0 +1,7 @@
+# Introduction
+
+Your friend Yaʻqūb works the counter at a deli in town, slicing, weighing, and wrapping orders for a line of hungry customers that gets longer every day.
+Waiting customers are starting to lose track of who is next, so he wants numbered tickets they can use to track the order in which they arrive.
+
+To make the customers feel special, he does not want the ticket to have only a number on it.
+They shall get a proper English sentence with their name and number on it.
diff --git a/exercises/practice/line-up/.meta/config.json b/exercises/practice/line-up/.meta/config.json
new file mode 100644
index 0000000..ba38b83
--- /dev/null
+++ b/exercises/practice/line-up/.meta/config.json
@@ -0,0 +1,19 @@
+{
+  "authors": [
+    "BNAndras"
+  ],
+  "files": {
+    "solution": [
+      "line_up.vim"
+    ],
+    "test": [
+      "line_up.vader"
+    ],
+    "example": [
+      ".meta/example.vim"
+    ]
+  },
+  "blurb": "Help lining up customers at Yaʻqūb's Deli.",
+  "source": "mk-mxp, based on previous work from Exercism contributors codedge and neenjaw",
+  "source_url": "https://forum.exercism.org/t/new-exercise-ordinal-numbers/19147"
+}
diff --git a/exercises/practice/line-up/.meta/example.vim b/exercises/practice/line-up/.meta/example.vim
new file mode 100644
index 0000000..ad64eb3
--- /dev/null
+++ b/exercises/practice/line-up/.meta/example.vim
@@ -0,0 +1,18 @@
+function! Format(name, number) abort
+  let l:suffix = s:Suffix(a:number)
+  return printf('%s, you are the %d%s customer we serve today. Thank you!', a:name, a:number, l:suffix)
+endfunction
+
+function! s:Suffix(number) abort
+  let l:mod10 = a:number % 10
+  let l:mod100 = a:number % 100
+
+  if l:mod10 == 1 && l:mod100 != 11
+      return 'st'
+  elseif l:mod10 == 2 && l:mod100 != 12
+      return 'nd'
+  elseif l:mod10 == 3 && l:mod100 != 13
+      return 'rd'
+  endif
+  return 'th'
+endfunction
diff --git a/exercises/practice/line-up/.meta/tests.toml b/exercises/practice/line-up/.meta/tests.toml
new file mode 100644
index 0000000..36fdf1d
--- /dev/null
+++ b/exercises/practice/line-up/.meta/tests.toml
@@ -0,0 +1,67 @@
+# This is an auto-generated file.
+#
+# Regenerating this file via `configlet sync` will:
+# - Recreate every `description` key/value pair
+# - Recreate every `reimplements` key/value pair, where they exist in problem-specifications
+# - Remove any `include = true` key/value pair (an omitted `include` key implies inclusion)
+# - Preserve any other key/value pair
+#
+# As user-added comments (using the # character) will be removed when this file
+# is regenerated, comments can be added via a `comment` key.
+
+[7760d1b8-4864-4db4-953b-0fa7c047dbc0]
+description = "format smallest non-exceptional ordinal numeral 4"
+
+[e8b7c715-6baa-4f7b-8fb3-2fa48044ab7a]
+description = "format greatest single digit non-exceptional ordinal numeral 9"
+
+[f370aae9-7ae7-4247-90ce-e8ff8c6934df]
+description = "format non-exceptional ordinal numeral 5"
+
+[37f10dea-42a2-49de-bb92-0b690b677908]
+description = "format non-exceptional ordinal numeral 6"
+
+[d8dfb9a2-3a1f-4fee-9dae-01af3600054e]
+description = "format non-exceptional ordinal numeral 7"
+
+[505ec372-1803-42b1-9377-6934890fd055]
+description = "format non-exceptional ordinal numeral 8"
+
+[8267072d-be1f-4f70-b34a-76b7557a47b9]
+description = "format exceptional ordinal numeral 1"
+
+[4d8753cb-0364-4b29-84b8-4374a4fa2e3f]
+description = "format exceptional ordinal numeral 2"
+
+[8d44c223-3a7e-4f48-a0ca-78e67bf98aa7]
+description = "format exceptional ordinal numeral 3"
+
+[6c4f6c88-b306-4f40-bc78-97cdd583c21a]
+description = "format smallest two digit non-exceptional ordinal numeral 10"
+
+[e257a43f-d2b1-457a-97df-25f0923fc62a]
+description = "format non-exceptional ordinal numeral 11"
+
+[bb1db695-4d64-457f-81b8-4f5a2107e3f4]
+description = "format non-exceptional ordinal numeral 12"
+
+[60a3187c-9403-4835-97de-4f10ebfd63e2]
+description = "format non-exceptional ordinal numeral 13"
+
+[2bdcebc5-c029-4874-b6cc-e9bec80d603a]
+description = "format exceptional ordinal numeral 21"
+
+[74ee2317-0295-49d2-baf0-d56bcefa14e3]
+description = "format exceptional ordinal numeral 62"
+
+[b37c332d-7f68-40e3-8503-e43cbd67a0c4]
+description = "format exceptional ordinal numeral 100"
+
+[0375f250-ce92-4195-9555-00e28ccc4d99]
+description = "format exceptional ordinal numeral 101"
+
+[0d8a4974-9a8a-45a4-aca7-a9fb473c9836]
+description = "format non-exceptional ordinal numeral 112"
+
+[06b62efe-199e-4ce7-970d-4bf73945713f]
+description = "format exceptional ordinal numeral 123"
diff --git a/exercises/practice/line-up/line_up.vader b/exercises/practice/line-up/line_up.vader
new file mode 100644
index 0000000..b181f3e
--- /dev/null
+++ b/exercises/practice/line-up/line_up.vader
@@ -0,0 +1,114 @@
+
+Execute (format smallest non-exceptional ordinal numeral 4):
+  let g:name = "Gianna"
+  let g:number = 4
+  let g:expected = "Gianna, you are the 4th customer we serve today. Thank you!"
+  AssertEqual g:expected, Format(g:name, g:number)
+
+Execute (format greatest single digit non-exceptional ordinal numeral 9):
+  let g:name = "Maarten"
+  let g:number = 9
+  let g:expected = "Maarten, you are the 9th customer we serve today. Thank you!"
+  AssertEqual g:expected, Format(g:name, g:number)
+
+Execute (format non-exceptional ordinal numeral 5):
+  let g:name = "Petronila"
+  let g:number = 5
+  let g:expected = "Petronila, you are the 5th customer we serve today. Thank you!"
+  AssertEqual g:expected, Format(g:name, g:number)
+
+Execute (format non-exceptional ordinal numeral 6):
+  let g:name = "Attakullakulla"
+  let g:number = 6
+  let g:expected = "Attakullakulla, you are the 6th customer we serve today. Thank you!"
+  AssertEqual g:expected, Format(g:name, g:number)
+
+Execute (format non-exceptional ordinal numeral 7):
+  let g:name = "Kate"
+  let g:number = 7
+  let g:expected = "Kate, you are the 7th customer we serve today. Thank you!"
+  AssertEqual g:expected, Format(g:name, g:number)
+
+Execute (format non-exceptional ordinal numeral 8):
+  let g:name = "Maximiliano"
+  let g:number = 8
+  let g:expected = "Maximiliano, you are the 8th customer we serve today. Thank you!"
+  AssertEqual g:expected, Format(g:name, g:number)
+
+Execute (format exceptional ordinal numeral 1):
+  let g:name = "Mary"
+  let g:number = 1
+  let g:expected = "Mary, you are the 1st customer we serve today. Thank you!"
+  AssertEqual g:expected, Format(g:name, g:number)
+
+Execute (format exceptional ordinal numeral 2):
+  let g:name = "Haruto"
+  let g:number = 2
+  let g:expected = "Haruto, you are the 2nd customer we serve today. Thank you!"
+  AssertEqual g:expected, Format(g:name, g:number)
+
+Execute (format exceptional ordinal numeral 3):
+  let g:name = "Henriette"
+  let g:number = 3
+  let g:expected = "Henriette, you are the 3rd customer we serve today. Thank you!"
+  AssertEqual g:expected, Format(g:name, g:number)
+
+Execute (format smallest two digit non-exceptional ordinal numeral 10):
+  let g:name = "Alvarez"
+  let g:number = 10
+  let g:expected = "Alvarez, you are the 10th customer we serve today. Thank you!"
+  AssertEqual g:expected, Format(g:name, g:number)
+
+Execute (format non-exceptional ordinal numeral 11):
+  let g:name = "Jacqueline"
+  let g:number = 11
+  let g:expected = "Jacqueline, you are the 11th customer we serve today. Thank you!"
+  AssertEqual g:expected, Format(g:name, g:number)
+
+Execute (format non-exceptional ordinal numeral 12):
+  let g:name = "Juan"
+  let g:number = 12
+  let g:expected = "Juan, you are the 12th customer we serve today. Thank you!"
+  AssertEqual g:expected, Format(g:name, g:number)
+
+Execute (format non-exceptional ordinal numeral 13):
+  let g:name = "Patricia"
+  let g:number = 13
+  let g:expected = "Patricia, you are the 13th customer we serve today. Thank you!"
+  AssertEqual g:expected, Format(g:name, g:number)
+
+Execute (format exceptional ordinal numeral 21):
+  let g:name = "Washi"
+  let g:number = 21
+  let g:expected = "Washi, you are the 21st customer we serve today. Thank you!"
+  AssertEqual g:expected, Format(g:name, g:number)
+
+Execute (format exceptional ordinal numeral 62):
+  let g:name = "Nayra"
+  let g:number = 62
+  let g:expected = "Nayra, you are the 62nd customer we serve today. Thank you!"
+  AssertEqual g:expected, Format(g:name, g:number)
+
+Execute (format exceptional ordinal numeral 100):
+  let g:name = "John"
+  let g:number = 100
+  let g:expected = "John, you are the 100th customer we serve today. Thank you!"
+  AssertEqual g:expected, Format(g:name, g:number)
+
+Execute (format exceptional ordinal numeral 101):
+  let g:name = "Zeinab"
+  let g:number = 101
+  let g:expected = "Zeinab, you are the 101st customer we serve today. Thank you!"
+  AssertEqual g:expected, Format(g:name, g:number)
+
+Execute (format non-exceptional ordinal numeral 112):
+  let g:name = "Knud"
+  let g:number = 112
+  let g:expected = "Knud, you are the 112th customer we serve today. Thank you!"
+  AssertEqual g:expected, Format(g:name, g:number)
+
+Execute (format exceptional ordinal numeral 123):
+  let g:name = "Yma"
+  let g:number = 123
+  let g:expected = "Yma, you are the 123rd customer we serve today. Thank you!"
+  AssertEqual g:expected, Format(g:name, g:number)
diff --git a/exercises/practice/line-up/line_up.vim b/exercises/practice/line-up/line_up.vim
new file mode 100644
index 0000000..89bae8c
--- /dev/null
+++ b/exercises/practice/line-up/line_up.vim
@@ -0,0 +1,11 @@
+"
+" Given a customer ame and a ticket number, return a formatted ticket message.
+"
+" Example:
+"
+" :echo Format('Maarten', 9)
+" Maarten, you are the 9th customer we serve today. Thank you!
+"
+function! Format(name, number) abort
+  " your code goes here
+endfunction