diff --git a/W13D1.pdf b/W13D1.pdf new file mode 100644 index 0000000..328f52c Binary files /dev/null and b/W13D1.pdf differ diff --git a/W9D1.pdf b/W9D1.pdf new file mode 100644 index 0000000..858b268 Binary files /dev/null and b/W9D1.pdf differ diff --git a/lixinyao1010.pdf b/lixinyao1010.pdf new file mode 100644 index 0000000..e5906dc Binary files /dev/null and b/lixinyao1010.pdf differ