Alternative you may consider is the brave search. Supports many bangs (?all of what ddg supports). It is independent of other search engines as well. But its picture search is poor.

Yes. Thanks. Sorry.

Oh I am sorry. I did not see the x sign between 3 and 7. Lol.

Wrong. Two hints:

7x7=9 at the end, not 7.

30x30=900, already more than 777.

I don’t want my little finger be vanished after my 3 reincarnations, I will try to use it more often, I guess.

Thank you. But this doesn’t explain the number of digits in hands and feet, does it? Great read BTW.