t	1	1	group 1: 21 symbols, 5 bits
u	2	2
v	3	3
w	4	4
x	5	5
y	6	6
z	7	7
{	8	8
|	9	9
}	10	10
~	11	11
	12	12
	13	13
	14	14
	15	15
	16	16
	17	17
	18	18
	19	19
	20	20
	21	21

	22	1	group 2: 3 symbol, 2 bitss
	23	2
	24	3

	25	1	group 3: 13 symbol, 4 bitss
	26	2
	27	3
	28	4
	29	5
	30	6
	31	7
	32	8
	33	9
	34	10
	35	11
	36	12
	37	13

@n	38	0	group 4: 5 symbol, 3 bitss
Gn	39	2
Tn	40	3
|n	41	4
n	42	5
