the first one could be hex (i would say definately)....but dont forget, the second one could be hex as well.

as far as converting it to decimal, just use the convention

0-9 = exact value (0-9)

a = 10

b = 11

c = 12

d = 13

e = 14

f = 15

now take the number 24, in decimal we pronounce this "twenty four", in hex we pronounce it "two four", and here ill show you why

in decimal 24 equates to (2 * 10^1) + (4 * 10^0) ==> (2 * 10) + (4 * 1) = 24

but in hex 24 equates to (2 * 16^1) + (4 * 1^0) ==> (2 * 16) + (4 * 1) = 36

to use a different example, the "113 5 102 97" you came up with could also be hex, and heres why

hex(113) = (1 * 16^2) + (1 * 16^1) + (3 * 16^0) ==> (1* 256) + (1 * 16) + (3 * 1) = 275

as far as what to do with these values, ill have to get back to you

~b