I’m working on a project where I need to decode URLs from a specific encoded format. I have a set of inputs that look like they are base64-encoded, prefixed with #4aHR0cHM6. Here are three examples of the inputs and their respective decoded URLs:

Inputs:

input1:
#4aHR0cHM6e3YzfXt2M31hZHt2Mn1iaWd0aW1lZGVsaXZlcnl7djJ9bmV0e3YzfV92MTN7djN9NGI2N2FjYTY5M2U5ZTF7djF9e3Y1fTlje3Y1fX//c3NkZUhidC9XRm5hdWpCLzdHc2FvZFc=t2NX03OTkxYjliMThlYjkxe3Y1fWRkYzk5ZmQxZWU3e3Y1fWQ3e3Y1fTFme3Y1fWE2e3Y1fWFmODhkYXt2MX02MWIxZjE2NzdjYzMzM3t2MX00MWMyOGQ0YjczZGU3NmJ//MGVlZGEvQlZmZ2V0L053OQ==hZnt2NX17djF9MzR7djV9ODl7djV9e3Y1fXt2MX0zOGZjNjczYjYxe3Y1fWRlN3t2MX0xOXt2NX0//RFR//Ym9hYXgvMmJoYXRTSS9aU0ZhYw==BTy9ESG//eE5qYXVpZXYvVG1zaDBzeS9mcnRqc2k=5BUi9iYWtz2ZjQ3NzM5OWU3e3YxfTgzYjl7djF9Yzg0e3Y1fWI4ZmI4MXt2MX17djF9OGQ2Yjc4YmN7djF9N2Zme3YxfTN7djF9ZTJle3YxfXt2MX03MWYyZmJmMnt2MX0ze3YxfTkze3Y1fWMyZWY3Nnt2NX05M3t2MX02NDl7djF9NjMzZjI5e3Y1fTJ7djV9Mnt2NX02OWU5NGZiMjExMzRlYXt2NX1jY2V7djF9MWMxMXt2MX1hZHt2MX17djV9e3YxfTRhYWJiNzYzOGFkZnt2MX17djV9OXt2MX17djV9Znt2M31wbGF5bGlzdHt2Mn17djR9

input2:
#4aHR0cHM6e3YzfXt2M31hYnt2Mn1iaWd0aW1lZGVsaXZlcnl7djJ9bmV0e3YzfV92MTN7djN9ZTk0ZDFiMjlie3Y1fTEyNzQ5Ynt2NX05ZjZme3YxfTMxMjIzNDYzNzEyM2MxMmM2OTZ7d//MGVlZGEvQlZmZ2V0L053OQ==jV9e3YxfTZ7djF9e3Y1fTYyMmFlZjYxYjFkMzlmYjM4ODQ5M2V7djF9OTNiYThmNnt2MX00e3Y1//eE5qYXVpZXYvVG1zaDBzeS9mcnRqc2k=fWU5OGNjNDdhODllNzYxNzJ7djV9MWMzMmMyM3t2NX02e3YxfTI3ZjQ0YzJhNGR7djV9YTY4ODFjMjllNjk4OGZlYTkxYTJmNDM3ODlje3YxfWI0YXt2MX1jOHt2MX1mY2Y3MTk0//Ym9hYXgvMmJoYXRTSS9aU0ZhYw==ZXt2MX1me3YxfTM0e3Y1fTR7djV9e3Y1fWF7djF9MmNmYjdmM2Fme3YxfWI5YjlkZGI3ZThmMjhiNjcyN2JmZWFlOGRlOTFlZWQyNzhmNmQ0e3YxfWF7djF9MTN7djF9ZDljNDhhODhlY2N7djF//c3NkZUhidC9XRm5hdWpCLzdHc2FvZFc=9Yzh7djF9e3Y1fWYze3Y1fTIyYzM2e3//RFRBTy9ESG5BUi9iYWtzY1fWQzZDZjMXt2M31wbGF5bGlzdHt2Mn17djR9

Outputs:

output1:
https://ad.bigtimedelivery.net/_v13/4b67aca693e9e1059c557991b9b18eb915ddc99fd1ee75d751f5a65af88da061b1f1677cc333041c28d4b73de76baf503458955038fc673b615de701956f477399e7083b90c845b8fb81008d6b78bc07ff030e2e0071f2fbf2030935c2ef7659306490633f295252569e94fb21134ea5cce01c110ad0504aabb7638adf05905f/playlist.m3u8

output2:
`https://ab.bigtimedelivery.net/_v13/e94d1b29b512749b59f6f0312234637123c12c69650605622aef61b1d39fb388493e093ba8f6045e98cc47a89e7617251c32c2356027f44c2a4d5a6881c29e6988fea91a2f43789c0b4a0c80fcf7194e0f0345455a02cfb7f3af0b9b9ddb7e8f28b6727bfeae8de91eed278f6d40a0130d9c48a88ecc0c805f3522c365d3d6c1/playlist.m3u8

i am expecting these outputs