public static void main ( String [ ] args ) {
  try ( Scanner input = new Scanner ( System . in ) ) {
    long n = input . nextLong ( ) ;
    long m = input . nextLong ( ) ;
    long a = 0 ;
    long largestInterval = getLargestInterval ( n , m ) ;
    if ( largestInterval == 0 ) {
      a = 1 ;
    }
    else if ( largestInterval == m - 1 ) {
      a = m - 1 ;
    }
    else {
      a = m + 1 ;
    }
    System . out . println ( a ) ;
  }
}

public static void main ( String [ ] args ) { try ( Scanner input = new Scanner ( System . in ) ) { long n = input . nextLong ( ) ; long m = input . nextLong ( ) ; long a = 0 ; long largestInterval = getLargestInterval ( n , m ) ; if ( largestInterval == 0 ) { a = 1 ; } else if ( largestInterval == m - 1 ) { a = m - 1 ; } else { a = m + 1 ; } System . out . println ( a ) ; } }
(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 (try_with_resources_statement resources: (resource_specification (resource type: (type_identifier) name: (identifier) value: (object_creation_expression type: (type_identifier) arguments: (argument_list (field_access object: (identifier) field: (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: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list)))) (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (decimal_integer_literal))) (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (method_invocation name: (identifier) arguments: (argument_list (identifier) (identifier))))) (if_statement condition: (parenthesized_expression (binary_expression left: (identifier) right: (decimal_integer_literal))) consequence: (block (expression_statement (assignment_expression left: (identifier) right: (decimal_integer_literal)))) alternative: (if_statement condition: (parenthesized_expression (binary_expression left: (identifier) right: (binary_expression left: (identifier) right: (decimal_integer_literal)))) consequence: (block (expression_statement (assignment_expression left: (identifier) right: (binary_expression left: (identifier) right: (decimal_integer_literal))))) alternative: (block (expression_statement (assignment_expression left: (identifier) right: (binary_expression left: (identifier) right: (decimal_integer_literal))))))) (expression_statement (method_invocation object: (field_access object: (identifier) field: (identifier)) name: (identifier) arguments: (argument_list (identifier))))))))