Statistical attacks on a list of MD5/SHA-1 hashes? I have a list of MD5 and SHA-1 hashes where the input string is of the form 

secret1000
secret1001
…


all the way up to

secret2000


Are there any attacks, analytical techniques that can give me any insights on the input strings?
The comments sum it up perfectly…


  Poncho’s comment:
    None are known, and it would be a significant result, as you really do see hashes like that in practice...


and


  Maarten Bodewes’s comment:
    MD5 and SHA-1 have been broken for collision, but then the input should still be formatted in a specific way. More importantly for your question: there is still no chance of finding the input (without "guessing" it correctly); they are still one-way-functions.