def J(a,b,i=0):
h=r=''
B=lambda n,b:n*'x'and B(n/b,b)+chr(48+n%b+7*(n%b>9))
for c in a:h+=B(ord(c),b)
while i<len(h):v=int(h[i:i+2],16);r+=chr(v)*(31<v<127);i+=2
print r
J("Hello, World!",6)
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