import re
pattern = r"https?://\S+|(\d+)"
s = "4758 11b98https://w...content-available-to-author-only...w.website11/111"
print(''.join(re.findall(pattern, s)))
aW1wb3J0IHJlCgpwYXR0ZXJuID0gciJodHRwcz86Ly9cUyt8KFxkKykiCnMgPSAiNDc1OCAxMWI5OGh0dHBzOi8vdy4uLmNvbnRlbnQtYXZhaWxhYmxlLXRvLWF1dGhvci1vbmx5Li4udy53ZWJzaXRlMTEvMTExIgoKcHJpbnQoJycuam9pbihyZS5maW5kYWxsKHBhdHRlcm4sIHMpKSk=