public static void main ( String [ ] args ) {
  Scanner fs = new Scanner ( System . in ) ;
  int T = fs . nextInt ( ) ;
  for ( int tt = 0 ;
  tt < T ;
  tt ++ ) {
    int a = fs . nextInt ( ) , b = fs . nextInt ( ) ;
    int best = Integer . MAX_VALUE ;
    for ( int times = 0 ;
    times < 30 ;
    times ++ ) {
      best = Math . min ( best , times + count ( a , b + times ) ) ;
    }
    System . out . println ( best ) ;
  }
}

public static void main ( String [ ] args ) { Scanner fs = new Scanner ( System . in ) ; int T = fs . nextInt ( ) ; for ( int tt = 0 ; tt < T ; tt ++ ) { int a = fs . nextInt ( ) , b = fs . nextInt ( ) ; int best = Integer . MAX_VALUE ; for ( int times = 0 ; times < 30 ; times ++ ) { best = Math . min ( best , times + count ( a , b + times ) ) ; } System . out . println ( best ) ; } }
(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: (integral_type) declarator: (variable_declarator name: (identifier) value: (method_invocation object: (identifier) name: (identifier) 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 (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)))) (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (field_access object: (identifier) field: (identifier)))) (for_statement init: (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (decimal_integer_literal))) condition: (binary_expression left: (identifier) right: (decimal_integer_literal)) update: (update_expression (identifier)) body: (block (expression_statement (assignment_expression left: (identifier) right: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (identifier) (binary_expression left: (identifier) right: (method_invocation name: (identifier) arguments: (argument_list (identifier) (binary_expression left: (identifier) right: (identifier))))))))))) (expression_statement (method_invocation object: (field_access object: (identifier) field: (identifier)) name: (identifier) arguments: (argument_list (identifier))))))))