let arr = [0, 3, 2, 9];
print(arr[3], type(arr));
arr[3] = "23";
print(arr[3], type(arr[3]));
let x = arr[1];
print(x);
let y;
print(y);
if false {
y = 5;
print(y);
} else {
let por = 10000;
let a = 2;
print(por);
}
fn sum(x, y) {
return x + y;
}
print(sum(5, 7));