mdp
const int N;
const double p = 0.5;
module main
x : [0..N] init N/2;
[right] x<N -> p : (x'=x+1) + (1-p) : (x'=x);
[left] x>0 -> p : (x'=x-1) + (1-p) : (x'=x);
endmodule
rewards "r"
[right] true : 1;
endrewards
rewards "l"
[left] true : 1;
