1[m, n] -> { s0[In_1] -> [In_1] : exists (e0 = [(In_1)/4]: 4e0 = In_1 and 3In_1 >= m and 3In_1 <= n) } 2{ : } 3[m, n] -> { [i0] -> separate[o0] : o0 >= 0; [i0] -> atomic[o0] : o0 <= -1 } 4