A non-volatile solute HX undergo complete (100%) ionization in water at any temperature above boiling point of pure water. The same solute HX undergo complete (100%) dimerization in water at any temperature below freezing point of pure water. The sum of values of both colligative properties elevation in boiling point and depression in freezing point for 1.0 molal aqueous solution of HX is (Round off answer to nearest integer)

$\left[K_b=0.52,K.kg.mol{e}^{-1},K_f=1.86K.kg.mol{e}^{-1}\right]$