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c = function(txt)
local x = string.reverse(txt)
local nt = ""
local s = false
for i = 1,#txt do
if not s then
s = true
nt = nt..string.sub(x,i+1,i+1)
else
s = false
nt = nt..string.sub(x,i-1,i-1)
end
end
if #x%2~=0 then
nt = nt..string.sub(x,#x,#x)
end
return nt
end
Lua
INFO