1,2,3,4,5,6,abc;
11,12,13,14,15,16,def;
21,22,23,24,25,26,ghi;
31,32,33,34,35,36,jkl;
41,42,43,44,45,46,mno;
51,52,53,54,55,56,pqr;
61,62,63,64,65,66,stu;
71,72,73,74,75,76,vwx;
81,82,83,84,85,86,y_z;
91,92,93,94,95,96,+-+;