require 'scanf'

def check(str)
    keys=["this","the","that"]
    for i in keys do
        return true if str.index(i) != nil
    end
    return false
end

while str = STDIN.gets
    while not check(str)
        for i in 0..str.length do
            if /[a-y]/ =~ str[i] then
                str[i] = str[i].succ
            elsif /[z]/ =~ str[i] then
                str[i] = 'a'
            end
        end
    end
    print str
end