
Assuming 234567 is required, the following result was found.
Consider the 3 following columns in an Excel spreadsheet: Old New Exists in Old? --------- --------- -------------- 123456 234567 234567 345678 345678 456789 567890 597890 I want the third column to say whether this is new or not. How? I found this in a...

bc1qf6elrdxc968h0k673l2djc9wrpazhqtxw8qqp4
0xb038962F3809b425D661EF5D22294Cf45E02FebF