Or as I would tell my husband # 25H and #25I
We always had themes but yes we have had 5 barn cats over the years named Toby. . . Toby, Toby J, Toby Sr., Not Toby and feauxtoby. Technically Feauxtoby wasn't a toby but he looked just like him but Skinner.
One doe all kids named after spices, another all Italian names etc.
Good luck naming them 443 and 444!