200 mL of 0.2 M HCl is mixed with 300 mL of 0.1 M NaOH. The molar heat of neutralization of this reaction is $-$57.1 kJ. The increase in temperature in $^\circ$C of the system on mixing is x $\times$ 10^$-$2. The value of x is ___________. (Nearest integer)

[Given : Specific heat of water = 4.18 J g^$-$1 K^$-$1, Density of water = 1.00 g cm^$-$3]

[Assume no volume change on mixing)