Suppose hk and rk denote the number of hares and rabbis respectively in the year k.
Assume that the number of those hares and rabbits changes over the years according to the following rule:
rk+1 = 10rk - 3hk
hk+1 = 4rk - 2hk
If there are 2 hares and 100 rabbits initially, what is the number of hares and rabbits in 2 years? in 20 years?