>>53
#ほぼ>>55の功績
import os, os.path, sys

s = sys.stdin.readline().rstrip('\n')
if os.path.exists(s):
　if os.path.isdir(s):
　　for root, dirs, files in os.walk(s):
　　　for fname in files: print os.path.join(root, fname)
　else:
　　print os.path.abspath(s)
else:
　print 'Not exists.'