CuS-II + 2 HINVO3 H20 + CuSVIO4 + 2 NIIO

This is an oxidation-reduction (redox) reaction:

S-II - 8 e- SVI (oxidation)

2 HI + 2 e- 2 H0 (reduction)

2 NV + 6 e- 2 NII (reduction)

Change the oxidation states