# http://c...content-available-to-author-only...e.com/q/85531/34718


import os
p=input()
for r,d,f in os.walk(p):
    t=r.replace(p,'').count('/');print'	'*t+os.path.basename(r)
    for i in f:print'	'*-~t+i

"""
from os import*
p=input()
for r,d,f in walk(p):
    t=r.replace(p,'').count(sep);print'	'*t+path.basename(r)
    for i in f:print'	'*-~t+i
"""