Letters

First we will display all the letters.

> letters
 [1] "a" "b" "c" "d" "e" "f" "g" "h" "i" "j" "k" "l" "m"
[14] "n" "o" "p" "q" "r" "s" "t" "u" "v" "w" "x" "y" "z"

And then only the first five letters of the alphabet.

> letters[1:5]
[1] "a" "b" "c" "d" "e"