`\color{#1c1c1c}{\text{I}}^(\color{#363636}{\text{t}}^(\color{#4f4f4f}{\text{s}}^(\color{#696969}{\text{m}}^(\color{#828282}{\text{e}}^(\color{#9c9c9c}{\text{F}}^(\color{#b5b5b5}{\text{r}}^(\color{#cfcfcf}{\text{e}}^\color{#eee9e9}{\text{d}})))))))`

`-)` Kiểu dữ liệu:

    `+)` Chữ

    `+)` Số

    `+) ...`

`-)` Phép toán:

    `+)` Phép toán thường`(+, -, xx, :``)`

    `+)` So sánh

    `+)` Logic

    `+) ...`