static float sumOfSeries ( int x , int k ) {
  float y = ( float ) ( ( ( float ) ( x ) / 81 ) * ( 9 * k - 1 + Math . pow ( 10 , ( - 1 ) * k ) ) ) ;
  return y ;
}

static float sumOfSeries ( int x , int k ) { float y = ( float ) ( ( ( float ) ( x ) / 81 ) * ( 9 * k - 1 + Math . pow ( 10 , ( - 1 ) * k ) ) ) ; return y ; }
(method_declaration (modifiers) type: (floating_point_type) name: (identifier) parameters: (formal_parameters (formal_parameter type: (integral_type) name: (identifier)) (formal_parameter type: (integral_type) name: (identifier))) body: (block (local_variable_declaration type: (floating_point_type) declarator: (variable_declarator name: (identifier) value: (cast_expression type: (floating_point_type) value: (parenthesized_expression (binary_expression left: (parenthesized_expression (binary_expression left: (cast_expression type: (floating_point_type) value: (parenthesized_expression (identifier))) right: (decimal_integer_literal))) right: (parenthesized_expression (binary_expression left: (binary_expression left: (binary_expression left: (decimal_integer_literal) right: (identifier)) right: (decimal_integer_literal)) right: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (decimal_integer_literal) (binary_expression left: (parenthesized_expression (unary_expression operand: (decimal_integer_literal))) right: (identifier))))))))))) (return_statement (identifier))))