1[n] -> { s0[i] -> [i,0] : 1 <= i <= 100 and n > 1; 2 s1[i,j] -> [i,j] : 1 <= i,j <= 100 and n > 1; 3 s2[i,j] -> [i,j] : 1 <= i,j <= 100 } 4[n] -> { : } 5[n] -> { [i,j] -> separate[x] : x >= 1 } 6