diff --git a/year4/semester2/CT421/papers/2007_2008_CT421_1_1_2.PDF b/year4/semester2/CT421/papers/2007_2008_CT421_1_1_2.PDF new file mode 100644 index 00000000..ca78a6cd Binary files /dev/null and b/year4/semester2/CT421/papers/2007_2008_CT421_1_1_2.PDF differ diff --git a/year4/semester2/CT421/papers/2007_2008_CT421_1_2_3.PDF b/year4/semester2/CT421/papers/2007_2008_CT421_1_2_3.PDF new file mode 100644 index 00000000..e58f61fd Binary files /dev/null and b/year4/semester2/CT421/papers/2007_2008_CT421_1_2_3.PDF differ diff --git a/year4/semester2/CT421/papers/2008_2009_CT421_1_1_2.PDF b/year4/semester2/CT421/papers/2008_2009_CT421_1_1_2.PDF new file mode 100644 index 00000000..e436c2a2 Binary files /dev/null and b/year4/semester2/CT421/papers/2008_2009_CT421_1_1_2.PDF differ diff --git a/year4/semester2/CT421/papers/2009_2010_CT421_1_1_2.PDF b/year4/semester2/CT421/papers/2009_2010_CT421_1_1_2.PDF new file mode 100644 index 00000000..78ea6d6e Binary files /dev/null and b/year4/semester2/CT421/papers/2009_2010_CT421_1_1_2.PDF differ diff --git a/year4/semester2/CT421/papers/2009_2010_CT421_1_2_3.PDF b/year4/semester2/CT421/papers/2009_2010_CT421_1_2_3.PDF new file mode 100644 index 00000000..b08bf3e5 Binary files /dev/null and b/year4/semester2/CT421/papers/2009_2010_CT421_1_2_3.PDF differ diff --git a/year4/semester2/CT421/papers/2010_2011_CT421_1_1_2.PDF b/year4/semester2/CT421/papers/2010_2011_CT421_1_1_2.PDF new file mode 100644 index 00000000..60f8ab70 Binary files /dev/null and b/year4/semester2/CT421/papers/2010_2011_CT421_1_1_2.PDF differ diff --git a/year4/semester2/CT421/papers/2010_2011_CT421_1_2_3.PDF b/year4/semester2/CT421/papers/2010_2011_CT421_1_2_3.PDF new file mode 100644 index 00000000..db298451 Binary files /dev/null and b/year4/semester2/CT421/papers/2010_2011_CT421_1_2_3.PDF differ diff --git a/year4/semester2/CT421/papers/2011_2012_CT421_1_1_2.PDF b/year4/semester2/CT421/papers/2011_2012_CT421_1_1_2.PDF new file mode 100644 index 00000000..8899dea9 Binary files /dev/null and b/year4/semester2/CT421/papers/2011_2012_CT421_1_1_2.PDF differ diff --git a/year4/semester2/CT421/papers/2012_2013_CT421_1_1_2.PDF b/year4/semester2/CT421/papers/2012_2013_CT421_1_1_2.PDF new file mode 100644 index 00000000..26e7e63e Binary files /dev/null and b/year4/semester2/CT421/papers/2012_2013_CT421_1_1_2.PDF differ diff --git a/year4/semester2/CT421/papers/2012_2013_CT421_1_2_3.PDF b/year4/semester2/CT421/papers/2012_2013_CT421_1_2_3.PDF new file mode 100644 index 00000000..adf68d83 Binary files /dev/null and b/year4/semester2/CT421/papers/2012_2013_CT421_1_2_3.PDF differ diff --git a/year4/semester2/CT421/papers/2013_2014_CT421_1_1_5.PDF b/year4/semester2/CT421/papers/2013_2014_CT421_1_1_5.PDF new file mode 100644 index 00000000..befae998 Binary files /dev/null and b/year4/semester2/CT421/papers/2013_2014_CT421_1_1_5.PDF differ diff --git a/year4/semester2/CT421/papers/2013_2014_CT421_1_2_3.PDF b/year4/semester2/CT421/papers/2013_2014_CT421_1_2_3.PDF new file mode 100644 index 00000000..e429d17a Binary files /dev/null and b/year4/semester2/CT421/papers/2013_2014_CT421_1_2_3.PDF differ diff --git a/year4/semester2/CT421/papers/2014_2015_CT421_1_1_5.PDF b/year4/semester2/CT421/papers/2014_2015_CT421_1_1_5.PDF new file mode 100644 index 00000000..2ab424f8 Binary files /dev/null and b/year4/semester2/CT421/papers/2014_2015_CT421_1_1_5.PDF differ diff --git a/year4/semester2/CT421/papers/2014_2015_CT421_1_2_3.PDF b/year4/semester2/CT421/papers/2014_2015_CT421_1_2_3.PDF new file mode 100644 index 00000000..7d635207 Binary files /dev/null and b/year4/semester2/CT421/papers/2014_2015_CT421_1_2_3.PDF differ diff --git a/year4/semester2/CT421/papers/2015_2016_CT421_1_1_5.PDF b/year4/semester2/CT421/papers/2015_2016_CT421_1_1_5.PDF new file mode 100644 index 00000000..9dfd2eee Binary files /dev/null and b/year4/semester2/CT421/papers/2015_2016_CT421_1_1_5.PDF differ diff --git a/year4/semester2/CT421/papers/2015_2016_CT421_1_2_3.PDF b/year4/semester2/CT421/papers/2015_2016_CT421_1_2_3.PDF new file mode 100644 index 00000000..c67ce975 Binary files /dev/null and b/year4/semester2/CT421/papers/2015_2016_CT421_1_2_3.PDF differ diff --git a/year4/semester2/CT421/papers/2016_2017_CT421_1_1_5.PDF b/year4/semester2/CT421/papers/2016_2017_CT421_1_1_5.PDF new file mode 100644 index 00000000..b3afd422 Binary files /dev/null and b/year4/semester2/CT421/papers/2016_2017_CT421_1_1_5.PDF differ diff --git a/year4/semester2/CT421/papers/2016_2017_CT421_1_2_3.PDF b/year4/semester2/CT421/papers/2016_2017_CT421_1_2_3.PDF new file mode 100644 index 00000000..17e993bd Binary files /dev/null and b/year4/semester2/CT421/papers/2016_2017_CT421_1_2_3.PDF differ diff --git a/year4/semester2/CT421/papers/2017_2018_CT421_1_1_5.PDF b/year4/semester2/CT421/papers/2017_2018_CT421_1_1_5.PDF new file mode 100644 index 00000000..e3703364 Binary files /dev/null and b/year4/semester2/CT421/papers/2017_2018_CT421_1_1_5.PDF differ diff --git a/year4/semester2/CT421/papers/2017_2018_CT421_1_2_3.PDF b/year4/semester2/CT421/papers/2017_2018_CT421_1_2_3.PDF new file mode 100644 index 00000000..d20ca2f3 Binary files /dev/null and b/year4/semester2/CT421/papers/2017_2018_CT421_1_2_3.PDF differ diff --git a/year4/semester2/CT421/papers/2018_2019_CT421_1_1_5.PDF b/year4/semester2/CT421/papers/2018_2019_CT421_1_1_5.PDF new file mode 100644 index 00000000..24e13bcf Binary files /dev/null and b/year4/semester2/CT421/papers/2018_2019_CT421_1_1_5.PDF differ diff --git a/year4/semester2/CT421/papers/2018_2019_CT421_1_2_3.PDF b/year4/semester2/CT421/papers/2018_2019_CT421_1_2_3.PDF new file mode 100644 index 00000000..7bd513ce Binary files /dev/null and b/year4/semester2/CT421/papers/2018_2019_CT421_1_2_3.PDF differ diff --git a/year4/semester2/CT421/papers/2019_2020_CT421_1_1_5.PDF b/year4/semester2/CT421/papers/2019_2020_CT421_1_1_5.PDF new file mode 100644 index 00000000..d279b60c Binary files /dev/null and b/year4/semester2/CT421/papers/2019_2020_CT421_1_1_5.PDF differ diff --git a/year4/semester2/CT421/papers/2021_2022_CT421_1_1_2.PDF b/year4/semester2/CT421/papers/2021_2022_CT421_1_1_2.PDF new file mode 100644 index 00000000..3e9a435e Binary files /dev/null and b/year4/semester2/CT421/papers/2021_2022_CT421_1_1_2.PDF differ diff --git a/year4/semester2/CT421/papers/2021_2022_CT421_1_2_3.PDF b/year4/semester2/CT421/papers/2021_2022_CT421_1_2_3.PDF new file mode 100644 index 00000000..89f535ac Binary files /dev/null and b/year4/semester2/CT421/papers/2021_2022_CT421_1_2_3.PDF differ diff --git a/year4/semester2/CT421/papers/2022_2023_CT421_1_1_2.PDF b/year4/semester2/CT421/papers/2022_2023_CT421_1_1_2.PDF new file mode 100644 index 00000000..d8fb2d5c Binary files /dev/null and b/year4/semester2/CT421/papers/2022_2023_CT421_1_1_2.PDF differ diff --git a/year4/semester2/CT421/papers/2022_2023_CT421_1_2_3.PDF b/year4/semester2/CT421/papers/2022_2023_CT421_1_2_3.PDF new file mode 100644 index 00000000..9d5cec48 Binary files /dev/null and b/year4/semester2/CT421/papers/2022_2023_CT421_1_2_3.PDF differ diff --git a/year4/semester2/CT421/papers/2023_2024_CT421_1_1_2.PDF b/year4/semester2/CT421/papers/2023_2024_CT421_1_1_2.PDF new file mode 100644 index 00000000..836a00ab Binary files /dev/null and b/year4/semester2/CT421/papers/2023_2024_CT421_1_1_2.PDF differ diff --git a/year4/semester2/CT421/papers/2023_2024_CT421_1_2_3.PDF b/year4/semester2/CT421/papers/2023_2024_CT421_1_2_3.PDF new file mode 100644 index 00000000..7003198d Binary files /dev/null and b/year4/semester2/CT421/papers/2023_2024_CT421_1_2_3.PDF differ