Letter Z
The letter Z symbolizes a linear jump in the count of the digits, when you reach the end of the number of the number.
As opposed to the letter S which implies a repetition in the day's account ; gito.
An example:
For the number of two digits ... 26, the second word, the third word, the fourth word, the fifth word and the sixth word will be selected (counting forward in masculine). And back (with the same backward digit in feminine) the fifth word (envez of the sixth word with the letter S), the fourth word, the third word and the second word. And so successively.
For the number ... 51, the fifth word, the fourth word, the third word, the second word and the first word will be selected (counting backwards in feminine). And back (counting on the same digit back in masculine) the second word (envez of the first word with the letter S), the third word, the fourth word and the fifth word. And so successively.
