 The machine \(T_{\textrm{Add}_i}\) uses the principle of shifting the addends to the right which was also used for \(T_{\textrm{Add}_2}\). More particularly, \(T_{add_i}\) computes the sum of \(n_1 + 1\), \(n_2 + 1\),… \(n_i+1\) from left to right, viz. it computes this sum as follows: 