7 files changed, 2 insertions, 6 deletions
diff --git a/prolog/problems/clp_r/bounding_box_3/en.py b/prolog/problems/clp_r/bounding_box_3/en.py
index 714f8a4..8c6a9f7 100644
--- a/prolog/problems/clp_r/bounding_box_3/en.py
+++ b/prolog/problems/clp_r/bounding_box_3/en.py
@@ -1,6 +1,5 @@
 # coding=utf-8
 
-id = 157
 name = 'bounding_box/3'
 slug = 'find the smallest bounding box'
 
diff --git a/prolog/problems/clp_r/center_3/en.py b/prolog/problems/clp_r/center_3/en.py
index 2c1f882..ae5aeb8 100644
--- a/prolog/problems/clp_r/center_3/en.py
+++ b/prolog/problems/clp_r/center_3/en.py
@@ -1,6 +1,5 @@
 # coding=utf-8
 
-id = 158
 name = 'center/3'
 slug = 'find central points'
 
diff --git a/prolog/problems/clp_r/common.py b/prolog/problems/clp_r/common.py
new file mode 100644
index 0000000..2238250
--- /dev/null
+++ b/prolog/problems/clp_r/common.py
@@ -0,0 +1,2 @@
+id = 9
+number = 8
diff --git a/prolog/problems/clp_r/linear_opt_3/en.py b/prolog/problems/clp_r/linear_opt_3/en.py
index 58530a9..848a30d 100644
--- a/prolog/problems/clp_r/linear_opt_3/en.py
+++ b/prolog/problems/clp_r/linear_opt_3/en.py
@@ -1,6 +1,5 @@
 # coding=utf-8
 
-id = 159
 name = 'linear_opt/3'
 slug = 'linear optimization'
 
diff --git a/prolog/problems/clp_r/max_sum_2/en.py b/prolog/problems/clp_r/max_sum_2/en.py
index 6d0c1d2..eeff4cd 100644
--- a/prolog/problems/clp_r/max_sum_2/en.py
+++ b/prolog/problems/clp_r/max_sum_2/en.py
@@ -1,6 +1,5 @@
 # coding=utf-8
 
-id = 156
 name = 'max_sum/2'
 slug = 'find maximal adjacent elements'
 
diff --git a/prolog/problems/clp_r/megabytes_2/en.py b/prolog/problems/clp_r/megabytes_2/en.py
index cb355f1..01fdfff 100644
--- a/prolog/problems/clp_r/megabytes_2/en.py
+++ b/prolog/problems/clp_r/megabytes_2/en.py
@@ -1,6 +1,5 @@
 # coding=utf-8
 
-id = 160
 name = 'megabytes/2'
 slug = 'convert mebibytes to megabytes'
 
diff --git a/prolog/problems/clp_r/turkey_3/en.py b/prolog/problems/clp_r/turkey_3/en.py
index b6e1d55..979033d 100644
--- a/prolog/problems/clp_r/turkey_3/en.py
+++ b/prolog/problems/clp_r/turkey_3/en.py
@@ -1,6 +1,5 @@
 # coding=utf-8
 
-id = 161
 name = 'turkey/3'
 slug = 'turkey feed'