VLOOKUP And Still Have Typed Text In Cell

I was wondering if there would be a way to use vlookup and still be able to type text in the same cell. For example, if the vlookup gives me a result of 123. I want it to also pull from a different cell that I've typed in 321. So the resulting cell would show 321-123 or 321 123. I have attached a sample sheet. On sheet two where the 3 items are, I want it to display 321-123 for item 1, 321-234 for item 2, and 321-345 for item 3. The 321 would be dependant on what I type into B1 on the first sheet.