.:
total 12
drwxr-xr-x 3 serhiy serhiy 4096 Dec 29 19:12  1 2
drwxr-xr-x 2 serhiy serhiy 4096 Dec 29 19:08 1 2
drwxr-xr-x 2 serhiy serhiy 4096 Dec 29 19:12 1 2 

./ 1 2:
total 4
-rw-r--r-- 1 serhiy serhiy    0 Dec 29 19:08 b
drwxr-xr-x 2 serhiy serhiy 4096 Dec 29 19:12 z

./ 1 2/z:
total 0

./1 2:
total 0
-rw-r--r-- 1 serhiy serhiy 0 Dec 29 19:08 a

./1 2 :
total 0
-rw-r--r-- 1 serhiy serhiy 0 Dec 29 19:09  d
-rw-r--r-- 1 serhiy serhiy 0 Dec 29 19:08 c
-rw-r--r-- 1 serhiy serhiy 0 Dec 29 19:09 x:
