Password characters

Password characters on a certain system are limited
to 26 uppercase letters [A A????1 Z], 26 lowercase
letters [a A????1 z], 10 digits [0 A????1 9], and 3 special
symbols [#, $, %]. Suppose a password-cracking
tool can generate and test 10,000,000 character
strings (potential passwords) per second. Could
all possible passwords of length 10 or less be
generated and tested in under 1 weekA????1s time? (Use
a spreadsheet to help ?nd the answer.)