export c fn main() -> u8 {
    let text: String = "token"
    let part: Span<u8> = text[1..4]
    if std.mem.len(text) == 5 {
        if std.mem.eqlBytes(part, "oke"[0..3]) {
            return part[1]
        }
    }
    return 0_u8
}