print('-- test while loop --')
{
    let i := 0
    while (i < 3) {
        i := i + 1
        print(i)
    }
    print(i)
}

print('-- test for loop --')
{
    for (let i := 0; i < 3; i := i + 1) {
        print(i) -- prints 3 times
    }
    print(i) -- global does not print
}

print('-- test emptier for loop --')
{
    let i := 0;
    for (;i < 3;) {
        print('woo')
        i := i + 1;
    }
    print('hoo')
}