local map = {
["A"] = "L", ["B"] = "K", ["C"] = "J", ["D"] = "A", ["E"] = "I", ["F"] = "U",
["G"] = "F", ["H"] = "I", ["I"] = "U", ["J"] = "Y", ["K"] = "O", ["L"] = "I",
["M"] = "U", ["N"] = "N", ["O"] = "A", ["P"] = "E", ["Q"] = "W", ["R"] = "0",
["S"] = "9", ["T"] = "J", ["U"] = "8", ["V"] = "0", ["W"] = "9", ["X"] = "8",
["Y"] = "0", ["Z"] = "9", ["0"] = "F", ["1"] = "A", ["2"] = "O", ["3"] = "S",
["4"] = "D", ["5"] = "I", ["6"] = "F", ["7"] = "U", ["8"] = "J", ["9"] = "L"
}
while true do
io.stdout:write("Challenge: ")
local challenge = io.read("*l")
if not challenge or challenge == "" then
io.stdout:write("\n")
break
end
challenge = string.upper( challenge )
local password = {}
for i = 1, #challenge do
local c = string.sub( challenge, i, i)
local d = map[ c ]
if d ~= nil then
table.insert( password, d)
else
io.stderr:write("\nInvalid character entered: " .. c .. "\n")
os.exit(0)
end
end
io.stdout:write("Password: " .. table.concat(password) .. '1')
io.stdout:write("\n\n")
io.flush()
end
os.exit(0)
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