Sorry to tear you away from the wonderful world of Final Fantasy 7, but since you do not know what VII means, I will just have to teach you. Trust me, it'll help. And trust me, this is the only time that you can trust someone who says trust me. Trust me.

Normal numbersRoman numerals
1I
2II
3III
4IV
5V
6VI
7VII
8VIII
9IX
10X

As you can see, I = 1, V = 5, and X = 10. III would be 3, but why isn't 4 IIII? Well, you can only pair three of one letter (like I) in a row. So you put an I before the V (5), meaning to take 1 away from 5. (4) Therefore, IX is nine. (I is 1, X is 10, 10 - 1 is 9) You should now know the Roman numerals from 1 to 10. You should also be able to guess how to write 11. If you have no clue, I'll just tell you now that it is XI.