Thymio

# declaring pseudofunction input and output arguments.

var myrand_n    #input
var myrand_m    #input
var myrand_res  #output

var x

# declaring pseudofunction myrand

sub myrand
call math.rand(myrand_res)
myrand_res = abs(myrand_res % (myrand_m+1 - myrand_n)) + myrand_n

# Now You can call pseudofunction myrand  when required
# for example:

onevent button.forward
# initialize arguments: m must be greater then n and m-n must be lower than 32767
myrand_m=1000            #only values between -32768 and 32767 are allowed
myrand_n=100             #only values between -32768 and 32767 are allowed
callsub myrand
x = myrand_res  # The final result will be in the variable x