println();
println("Hello, World");
println(1+2*3);
println(1.0/3);
println([1,1+1,2+1,2+2,10/2]);
println(2*"3.4");

/*fac = fn(x)  x==0 ? 1 : x*calle(x-1);
print(fac(3));*/


/*print();

fac = fn(x) x==0 ? 1 : x*callee(x-1);
sum = fn(l) isnull(l) ? 0 : (hd l) + callee(tl l);

five = fn() 5;

print(tl ["one","two","ten", 7, 8, 9, [10,11,12,five()]] @ ["and","this was","just added"]);
print(sum([10,20,29,40,50]));

f = fn() { print("I am f - throwing 'bad shit'"); throw "bad shit"; };
f() catch e print("Caught " + e);

print("Magical"::"list"::"coercsion");

slowfib = fn(n) switch(n)
        case 0: 0 
        case 1: 1
        default: callee(n-2) + callee(n-1);

fu = future { x = slowfib(29); print("future slowfib complete"); x; };
lz = lazy { x = slowfib(27); print("lazy slowfib complete"); x; };

foo = ref 10;
print(*foo);
foo := 20;
print(*foo);
join(spawn(fn() { sleep(200); foo := 29; }));
print(*foo);
print(*((ref 20) := 50));

i = ref 10;
n = -1;

while *i > 0  do { print("Countdown: " ^ *i ^ "!"); i:= *i-1; }; 

print("How are you?");
//s = input();
s = "good";
if(s == "good") then print("Good! slowfib(27) is " ^ lz) else print("Too bad, i won't give you slowfib 29"); 
print("Fib(29) = " ^ fu);
print("Fib(27) = " ^ lz);*/