Okay so i have two rows of text(both about 400 cells)

And i need to know which of them dont come together(They are alphanumeric)

so for example

A B
1212x1d21dc 321fc12c23c
12345zxcvb asfsafd4rtt323
321fc12c23c 12345zxcvb
asfsafd4rtt323 1890cu990u

Now here 1212x1d21dc, 321fc12c23c, 1890cu990u, 321fc12c23c dont appear twice, the rest do.
I want to know which of them appear in a odd amount, and which dont. Any way to sort them?