2. Press the letter "V" and then "1", and all kinds of punctuation marks will appear.
3. Press the letter "V" and then press the number "2", and the special symbol as shown in the following figure will appear.
4. Pressing the letter "V"+the number "3" is a special symbol of English letters.
5. Press "V+4", and "V+5" will appear as a Martian character (as shown below).
6. If you want to input capital numbers directly, just press the letter V and then press the corresponding number.