Q81. The sum of the square of the modulus of the elements in the set $\{ z = \mathrm { a } + \mathrm { ib } : \mathrm { a } , \mathrm { b } \in \mathbf { Z } , z \in \mathbf { C } , | z - 1 | \leq 1 , | z - 5 | \leq | z - 5 \mathrm { i } | \}$ is
Q81. The sum of the square of the modulus of the elements in the set $\{ z = \mathrm { a } + \mathrm { ib } : \mathrm { a } , \mathrm { b } \in \mathbf { Z } , z \in \mathbf { C } , | z - 1 | \leq 1 , | z - 5 | \leq | z - 5 \mathrm { i } | \}$ is