deletions | additions       diff --git a/R(r) 577 b/R(r) 577  new file mode 100644  index 0000000..147d0ce  Binary files /dev/null and b/R(r) 577 differ diff --git a/layout.md b/layout.md  index d7cbcd5..0a34f05 100644  --- a/layout.md  +++ b/layout.md 
...
untitled.tex R(r) 577