.
./files.txt
./RA-QD02-0120-01_04.pdf
./reports
./reports/CAT3_Uesugi
./reports/CAT3_Uesugi/CAT3_Uesugi-RA-QD02-0120-01_04_MU.pdf
./reports/CAT3_Uesugi/CAT3_Uesugi-RA-QD02-0120-01_04_MU.txt
./reports/CAT3_Yabuta
./reports/CAT3_Yabuta/CAT3_Yabuta-RA-QD02-0120-01_04_HY.pdf
./reports/CAT3_Yabuta/CAT3_Yabuta-RA-QD02-0120-01_04_HY.txt
./sample.txt
./tree.txt