public static void main ( String [ ] args ) {
  Scanner sc = new Scanner ( System . in ) ;
  for ( int t = sc . nextInt ( ) ;
  t -- > 0 ;
  ) {
    int a = sc . nextInt ( ) , b = sc . nextInt ( ) , c = 1 << 30 ;
    for ( int i = 0 ;
    i < 69 ;
    i ++ ) c = Math . min ( c , i + calc ( a , b + i ) ) ;
    System . out . println ( c ) ;
  }
}

public static void main ( String [ ] args ) { Scanner sc = new Scanner ( System . in ) ; for ( int t = sc . nextInt ( ) ; t -- > 0 ; ) { int a = sc . nextInt ( ) , b = sc . nextInt ( ) , c = 1 << 30 ; for ( int i = 0 ; i < 69 ; i ++ ) c = Math . min ( c , i + calc ( a , b + i ) ) ; System . out . println ( c ) ; } }
(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)))))) (for_statement init: (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list)))) condition: (binary_expression left: (update_expression (identifier)) right: (decimal_integer_literal)) 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))) declarator: (variable_declarator name: (identifier) value: (binary_expression left: (decimal_integer_literal) right: (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: (decimal_integer_literal)) update: (update_expression (identifier)) body: (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))))))))