1*4882a593Smuzhiyun# comment a 2*4882a593Smuzhiyun# comment b 3*4882a593Smuzhiyun## comment c 4*4882a593Smuzhiyun# <-- tab 5*4882a593Smuzhiyun# Next comment is empty 6*4882a593Smuzhiyun# 7*4882a593Smuzhiyun# Non empty 8