fail text Deadfish converter

gistfile1.lua

local sqr={[0]={0,0},{0,0}}
for l1=2,210 do
	sqr[l1]={math.floor(math.sqrt(l1)+0.5),math.floor(math.sqrt(l1)+0.5)^2}
end
for l1=211,255 do
	sqr[l1]={15,225}
end
local o={}
for x=0,255 do
	o[x]={}
	for y=0,255 do
		if x==y then
			o[x][y]=""
		else
			local dt=x-y
			local direct=(dt>0 and "d" or "i"):rep(math.abs(dt))
			local n
			local prw=sqr[y]
			do
				local r
				if x<4 then
					r=("i"):rep(4-x).."ss"
				elseif x<16 then
					r="ss"
				else
					r="s"
				end
				r=r..("i"):rep(prw[1])
				local sdt=x-prw[1]
				local m=(sdt>0 and "d" or "i"):rep(math.abs(sdt))
				n=#r<#m and r or m
			end
			local sdt=y-prw[2]
			local pow=n.."s"..(sdt>0 and "i" or "d"):rep(math.abs(sdt))
			o[x][y]=#pow<#direct and pow or direct
		end
	end
end
local iter=true
while iter do
	iter=false
	for x=0,255 do
		for y=0,255 do
			for z=0,255 do
				if #(o[x][z]..o[z][y]) < #o[x][y] then
					o[x][y]=o[x][z]..o[z][y]
					iter=true
				end
			end
		end
	end
end
local out=""
local last=0
for char in ("Hello, World!"):gmatch(".") do
	local bc=string.byte(char)
	out=out..o[last][bc].."o"
	last=bc
end
print(out)