public static void start ( ) {
  Scanner sc = new Scanner ( System . in ) ;
  int a = sc . nextInt ( ) , b = sc . nextInt ( ) ;
  System . out . println ( ( int ) Math . ceil ( ( a + b ) / 2.0 ) ) ;
}

public static void start ( ) { Scanner sc = new Scanner ( System . in ) ; int a = sc . nextInt ( ) , b = sc . nextInt ( ) ; System . out . println ( ( int ) Math . ceil ( ( a + b ) / 2.0 ) ) ; }
(method_declaration (modifiers) type: (void_type) name: (identifier) parameters: (formal_parameters) body: (block (local_variable_declaration type: (type_identifier) declarator: (variable_declarator name: (identifier) value: (object_creation_expression type: (type_identifier) arguments: (argument_list (field_access object: (identifier) field: (identifier)))))) (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list))) declarator: (variable_declarator name: (identifier) value: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list)))) (expression_statement (method_invocation object: (field_access object: (identifier) field: (identifier)) name: (identifier) arguments: (argument_list (cast_expression type: (integral_type) value: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (binary_expression left: (parenthesized_expression (binary_expression left: (identifier) right: (identifier))) right: (decimal_floating_point_literal))))))))))