static int countReduce ( String str ) {
  int n = str . length ( ) ;
  int res = 0 ;
  for ( int i = 0 ;
  i < n / 2 ;
  i ++ ) res += Math . abs ( str . charAt ( i ) - str . charAt ( n - i - 1 ) ) ;
  return res ;
}

static int countReduce ( String str ) { int n = str . length ( ) ; int res = 0 ; for ( int i = 0 ; i < n / 2 ; i ++ ) res += Math . abs ( str . charAt ( i ) - str . charAt ( n - i - 1 ) ) ; return res ; }
(method_declaration (modifiers) type: (integral_type) name: (identifier) parameters: (formal_parameters (formal_parameter type: (type_identifier) name: (identifier))) body: (block (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list)))) (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (decimal_integer_literal))) (for_statement init: (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (decimal_integer_literal))) condition: (binary_expression left: (identifier) right: (binary_expression left: (identifier) right: (decimal_integer_literal))) update: (update_expression (identifier)) body: (expression_statement (assignment_expression left: (identifier) right: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (binary_expression left: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (identifier))) right: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (binary_expression left: (binary_expression left: (identifier) right: (identifier)) right: (decimal_integer_literal)))))))))) (return_statement (identifier))))