Problem D: Basic
The programming language Ada has integer constants that look like this:
123, 8#123#, 16#abc#. These constants represent the integers 123,
83 (123 base 8) and 2739 (abc base 16). More precisely, an integer
may be a decimal integer given as a sequence of one or more digits less than 10,
or it may be an integer to some specific base, given as the base followed
by a sequence of one or more digits less than the base enclosed by # symbols.
Lower case letters from a through f are used as the digits representing
10 through 15.
In Ada, the base, if specified, must be a sequence of decimal digits.
For this problem, however, the base may be of any form described above
so long as it represents an integer between 2 and 16 inclusive.
The first line of input contains a positive integer n. n
lines follow. For each line of input, output a line "yes" if it is a
valid integer constant according to the above rules; otherwise output a
line containing "no". Input lines contain no spaces and are between 1 and
80 characters in length.
Sample Input
5
2#101#
2#101##123#
17#abc#
16#123456789abcdef#
16#123456789abcdef#123456789abcdef#
Output for Sample Input
yes
yes
no
yes
no