pub fn main() void {
    comptime var i: u64 = 2;
    inline while (i < 6) : (i += 1) {
        print(i);
    }
}
fn print(len: usize) void {
    asm volatile ("syscall"
        :
        : [number] "{rax}" (1),
          [arg1] "{rdi}" (1),
          [arg2] "{rsi}" (@ptrToInt("Hello")),
          [arg3] "{rdx}" (len),
        : "rcx", "r11", "memory"
    );
}

// run
//
// HeHelHellHello