Random number generation, without built-in random number generation libraries Task:

Make a random number generator. The catch is that you can't use any built-in randomness functions. Your random numbers must be anything between 0 and 100, though they do not have to be floating point.

Rules:


It must produce a pseudorandom number.
Randomness defined: If you run it x times, then x times again, the two sequences will be unlikely to be identical. Where 2 &lt; x &lt; 10.
It is not required that your random number generator passes any specific test about the quality of the generated numbers, as long as the previous rule is respected.
Any language is accepted, except Golfscript, see here.
This is code-golf, so the shortest answer in bytes wins.
You may not hard-code the output numbers or read them from a file.
Post 5 numbers generated by your program.
Good luck!
C (46)

The stack pointer is sort of a random number

main(x){printf("%d",((unsigned char)&amp;x)%100);}


Numbers I got:

20
40
4
52
36