# python 3

# compress brainfuck program by encoding each two-command group into a single character
# programs with an odd number of commands will have a '.' prepended to the front
# results in 50% compression

counter = h = v = 0
prog = comp = ""
cs = "><+-,.[]" # command set
load_list = "0@123456!789" + "abcdefghijklmnopqrstuvwxyz" + "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
# '><' = '@', '<>' = '!' should not happen very often

f = open(input("bf file: "), 'r')

while True:
   nextch = f.read(1)
   if(not nextch):
       f.close()
       break
   if(nextch in cs):
       prog += (nextch)

if(len(prog) % 2 == 1):
    prog = '.' + prog # make program list even

print()
for i in range(0, int(len(prog)), 2):
    comp += load_list[cs.find(prog[i]) * 8 + 
                    cs.find(prog[i + 1])]

print(comp)
'''
H/V	>	<	+	-	,	.	[	]
>	0  (!)	e	m	u	C	K	S
<  (@)	7	f	n	v	D	L	T
+	1	8	g  (o)	w	E	M	U
-	2	9  (h)	p	x	F	N	V
,	3	a	i	q  (y)	G	O	W
.	4	b	j	r	z	H	P	X
[	5	c	k	s	A	I	Q	Y
]	6	d	l	t	B	J  (R)	Z
'''