0 A2 0 C7GST-1 TRE20-0 /RTLTB2-1

CELL A1 having data like above & from “TRE20-0” I want to copy “TRE20” for the cell B1.
& from “/RTLTB2-1” I want to copy “1” for the cell C1. but if cell A1 having blank then B1 & C1 will be blank as well

& like this i have data till A65536
15 A2 0 C7GST-143 TRE20-15 /RTLTB2-47
1 A2 24 C7GSTAH-129&&-159 BSE24-1 /RTLTT2-2017
7 A2 0 C7GST-182 MGW03-7/RTLTB2-231