public static void main ( String [ ] args ) {
  Scanner sc = new Scanner ( System . in ) ;
  List < Integer > a = new ArrayList < > ( ) ;
  IntStream . range ( 0 , 3 ) . forEach ( i -> a . add ( sc . nextInt ( ) ) ) ;
  Collections . sort ( a ) ;
  System . out . println ( Math . abs ( a . get ( 2 ) - a . get ( 1 ) ) + Math . abs ( a . get ( 1 ) - a . get ( 0 ) ) ) ;
}

public static void main ( String [ ] args ) { Scanner sc = new Scanner ( System . in ) ; List < Integer > a = new ArrayList < > ( ) ; IntStream . range ( 0 , 3 ) . forEach ( i -> a . add ( sc . nextInt ( ) ) ) ; Collections . sort ( a ) ; System . out . println ( Math . abs ( a . get ( 2 ) - a . get ( 1 ) ) + Math . abs ( a . get ( 1 ) - a . get ( 0 ) ) ) ; }
(method_declaration (modifiers) type: (void_type) name: (identifier) parameters: (formal_parameters (formal_parameter type: (array_type element: (type_identifier) dimensions: (dimensions)) name: (identifier))) 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: (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)))) (expression_statement (method_invocation object: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (decimal_integer_literal) (decimal_integer_literal))) name: (identifier) arguments: (argument_list (lambda_expression parameters: (identifier) body: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (method_invocation object: (identifier) name: (identifier) arguments: (argument_list)))))))) (expression_statement (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (identifier)))) (expression_statement (method_invocation object: (field_access object: (identifier) field: (identifier)) name: (identifier) arguments: (argument_list (binary_expression left: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (binary_expression left: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (decimal_integer_literal))) right: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (decimal_integer_literal)))))) right: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (binary_expression left: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (decimal_integer_literal))) right: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (decimal_integer_literal))))))))))))