(i) A(1,1,1);B(4,2,3);C(5,6,7);D(2,5,5)A(1, 1, 1); B(4, 2, 3); C(5, 6, 7); D(2, 5, 5)A(1,1,1);B(4,2,3);C(5,6,7);D(2,5,5)