An 8.0 g ice cube at – 10oC is put into a Thermos flask

An 8.0 g ice cube at – 10oC is put into a Thermos flask containing 100 cm3 of water at 20oC. By how much has the entropy of the cube-water system changed when equilibrium is reached the specific heat of ice is 2220 J/kg ∙ K.