ex317 is
alphanum := ["A","B","C","D","E","F","G","H","I","J","K","L","M",
"N","O","P","Q","R","S","T","U","V","W","X","Y","Z",
"a","b","c","d","e","f","g","h","i","j","k","l","m",
"n","o","p","q","r","s","t","u","v","w","x","y","z",
"0","1","2","3","4","5","6","7","8","9"]
simple_random 5945074330984974151 ()->
random_string(n0) =>
if n0 = 0 ""
else alphanum[random.next_i32 alphanum.length] + random_string n0-1
n := 50
for _ in 0..2 do
s := random_string n
say s