local b='ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/'
function dsfsdfsdfsd(data)
    data = string.gsub(data, '[^'..b..'=]', '')    return (data:gsub('.', function(x)
        if (x == '=') then return '' end        local r,f='',(b:find(x)-1)
        for i=6,1,-1 do r=r..(f%2^i-f%2^(i-1)>0 and '1' or '0') end        return r;
    end):gsub('%d%d%d?%d?%d?%d?%d?%d?', function(x)
        if (#x ~= 8) then return '' end        local c=0
        for i=1,8 do c=c+(x:sub(i,i)=='1' and 2^(8-i) or 0) end
            return string.char(c)    end))
end
fdsfsdfscxzc = "SGVsbG8gbGl0dGxlIGhhY2tlci4gSSBoYXZlIHNvbWV0aGluZyBpbnRlcmVzdGluZyA0IHlvdS4gR2l2ZSBtZSBhIG51bWJlciBhbmQsIGkgd2lsbCBnaXZlIHlvdSBhIGdpZnQuLi4gPSk="
dsfxcvvbbvchbfg = load("\112\114\105\110\116\32\40\100\115\102\115\100\102\115\100\102\115\100\40\102\100\115\102\115\100\102\115\99\120\122\99\41\41\10")
dsfxcvvbbvchbfg()
local vbkcnxbcxknv
vbkcnxbcxknv=io.read()