io.write((function (b, c, f)
	local a,d,s,r = b("a"),b("a")-b("A"),io.stdin:read("*l"),{}
	for i=1,#s do
		r[i]=b(f(s,i,i))>=a and c(b(f(s,i,i))-d) or c(b(f(s,i,i))+d)
	end r[#s+1]="\n"
	return unpack(r)
end)(string.byte, string.char, string.sub))