(a,b)=a(1,0)+b(0,1)=\underbrace{(1,0)+\cdots +(1,0)}_{a~puta}+\underbrace{(0,1)+\cdots +(0,1)}_{b~puta}=\\
\underbrace{\varphi (4,-3,-4)+\cdots+\varphi (4,-3,-4)}_{a~puta}+\underbrace{\varphi(4,-3,-3)+\cdots +\varphi(4,-3,-3)}_{b~puta}=\\
\varphi(a(4,-3,-4)+b(4,-3,-3))=\varphi(4a+4b,-3a-3b,-4a-3b),