fn start_main() -> i64 {
    print("first: ");
    let سيئ: result<ط8> = parse_u8(read_line());
    if (سيئ::ok) {
        return 1;
    }
    print(سيئ::error::code);
    print("\nsecond: ");
    let جيد: result<i64> = parse_i64(read_line());
    if (جيد::ok) {
        if (format_i64(-9223372036854775808) not match "-9223372036854775808") { return 2; }
        print(format_i64(جيد::value + 1));
        print("\n");
        return 0;
    }
    return 3;
}