static int sumPrime ( int k ) {
  SieveOfEratosthenes ( ) ;
  Vector < Integer > v = new Vector < > ( ) ;
  for ( int i = 2 ;
  i < MAX ;
  i ++ ) {
    if ( prime [ i ] ) v . add ( i ) ;
  }
  int sum = 0 ;
  int skip = ( k * ( k - 1 ) ) / 2 ;
  while ( k > 0 ) {
    sum += v . get ( skip ) ;
    skip ++ ;
    k -- ;
  }
  return sum ;
}

static int sumPrime ( int k ) { SieveOfEratosthenes ( ) ; Vector < Integer > v = new Vector < > ( ) ; for ( int i = 2 ; i < MAX ; i ++ ) { if ( prime [ i ] ) v . add ( i ) ; } int sum = 0 ; int skip = ( k * ( k - 1 ) ) / 2 ; while ( k > 0 ) { sum += v . get ( skip ) ; skip ++ ; k -- ; } return sum ; }
(method_declaration (modifiers) type: (integral_type) name: (identifier) parameters: (formal_parameters (formal_parameter type: (integral_type) name: (identifier))) body: (block (expression_statement (method_invocation name: (identifier) arguments: (argument_list))) (local_variable_declaration type: (generic_type (type_identifier) (type_arguments (type_identifier))) declarator: (variable_declarator name: (identifier) value: (object_creation_expression type: (generic_type (type_identifier) (type_arguments)) arguments: (argument_list)))) (for_statement init: (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (decimal_integer_literal))) condition: (binary_expression left: (identifier) right: (identifier)) update: (update_expression (identifier)) body: (block (if_statement condition: (parenthesized_expression (array_access array: (identifier) index: (identifier))) consequence: (expression_statement (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (identifier))))))) (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (decimal_integer_literal))) (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (binary_expression left: (parenthesized_expression (binary_expression left: (identifier) right: (parenthesized_expression (binary_expression left: (identifier) right: (decimal_integer_literal))))) right: (decimal_integer_literal)))) (while_statement condition: (parenthesized_expression (binary_expression left: (identifier) right: (decimal_integer_literal))) body: (block (expression_statement (assignment_expression left: (identifier) right: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (identifier))))) (expression_statement (update_expression (identifier))) (expression_statement (update_expression (identifier))))) (return_statement (identifier))))