public static void main ( String [ ] args ) {
  BufferedReader br = new BufferedReader ( new InputStreamReader ( System . in ) ) ;
  Scanner sc = new Scanner ( System . in ) ;
  String str = sc . next ( ) ;
  int sum = 0 ;
  for ( char x : str . toCharArray ( ) ) {
    if ( x == '+' ) sum ++ ;
    else if ( x == '-' ) sum -- ;
  }
  System . out . println ( sum ) ;
}

public static void main ( String [ ] args ) { BufferedReader br = new BufferedReader ( new InputStreamReader ( System . in ) ) ; Scanner sc = new Scanner ( System . in ) ; String str = sc . next ( ) ; int sum = 0 ; for ( char x : str . toCharArray ( ) ) { if ( x == ' + ' ) sum ++ ; else if ( x == ' - ' ) sum -- ; } System . out . println ( sum ) ; }
(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 (object_creation_expression type: (type_identifier) arguments: (argument_list (field_access object: (identifier) field: (identifier)))))))) (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: (type_identifier) 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))) (enhanced_for_statement type: (integral_type) name: (identifier) value: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list)) body: (block (if_statement condition: (parenthesized_expression (binary_expression left: (identifier) right: (character_literal))) consequence: (expression_statement (update_expression (identifier))) alternative: (if_statement condition: (parenthesized_expression (binary_expression left: (identifier) right: (character_literal))) consequence: (expression_statement (update_expression (identifier))))))) (expression_statement (method_invocation object: (field_access object: (identifier) field: (identifier)) name: (identifier) arguments: (argument_list (identifier))))))