3. We know A, E , I, 0 and U are vowels of English alphabet and remaining letters are consonants of English alphabets.
4. A ® 4 M (A to M) letters are called first half of English alphabets.
5. N ® 4 Z (N to Z) letters are called second half of English alphabets.
6. To the left means Z ® A (Z to A)
7. To the right means A ® Z (A to Z)
8. From A ® Z (A to Z) letters are called left to right of English alphabets.
9. From Z ® A (Z to A) letters are called right to left of English alphabets.