name_generator.py

names = ["Smith", "Leeson", "Markcano"]

starts = [a[0:2] for a in names]

ends = [name[::-1][0:2][::-1] for name in names]

mids = [name[2:-2] for name in names]

new_names = set()

for s in starts:
    for m in mids:
        for e in ends:
            new_name = f"{s}{m}{e}"
            new_names.add(new_name)