Chain calls of next together


"0".next.next.next # => "3"

1.	Call next function from string class
2.	string.next adds a character when it reaches a boundary, or adds a digit or decimal place when appropriate
3.	Call next function on returning result from reverse
4.	string.next is based on the character set in use
5.	next works for numbers represented as strings
6.	number.next
7.	next method from Integer.

Chain calls of next together : next « String « Ruby