while line = STDIN.gets

	len = line.length

	while !(line =~ /((the)|(this)|(that))/)
	
		for i in 0..len-1 do
			if( (line[i] >= "a") && (line[i] <= "z") )
				if(line[i] == "z")
					line[i] = "a"
				else
					line[i] = line[i].succ
				end
			end
		end
	end
	
	puts line
	
end