/2018/input/
../
1.txt
10.txt
11.txt
12.txt
13.txt
14.txt
15.txt
16.txt
17.txt
18.txt
19.txt
2.txt
20.txt
21.txt
22.txt
23.txt
24.txt
25.txt
3.txt
4.txt
5.txt
6.txt
7.txt
8.txt
9.txt