de la cifra 1-------------------pana la cifra ---------------------------------9 cifre
10-----------------------------------14----------------------------11 cifre
9+11=20 o varianta
15----------------------------------24------------------------ 20 cifre
a doua varianta
25-------------------------------34-------------------------20 cifre
a treia varianta
35------------------------------44--------------------------20 cifre
a patra varianta
45-------------------------------54-------------------------20 cifre
a cincea varianta
55---------------------------------64------------------------20 cifre
a sasea varianta
65----------------------------------74------------------------20 cifre
a saptea varianta
