public static void main ( String [ ] args ) throws Exception {
  Scanner scan = new Scanner ( System . in ) ;
  int n = scan . nextInt ( ) ;
  int s = scan . nextInt ( ) ;
  int [ ] a = new int [ n ] ;
  int [ ] b = new int [ n ] ;
  for ( int i = 0 ;
  i < n ;
  i ++ ) {
    a [ i ] = scan . nextInt ( ) ;
  }
  for ( int i = 0 ;
  i < n ;
  i ++ ) {
    b [ i ] = scan . nextInt ( ) ;
  }
  boolean result ;
  if ( a [ 0 ] == 0 ) {
    result = false ;
  }
  else if ( a [ s - 1 ] == 1 ) {
    result = true ;
  }
  else if ( b [ s - 1 ] == 0 ) {
    result = false ;
  }
  else {
    result = false ;
    for ( int i = s ;
    i < n ;
    i ++ ) {
      if ( b [ i ] == 1 && a [ i ] == 1 ) {
        result = true ;
        break ;
      }
    }
  }
  System . out . println ( result ? "YES" : "NO" ) ;
}

public static void main ( String [ ] args ) throws Exception { Scanner scan = new Scanner ( System . in ) ; int n = scan . nextInt ( ) ; int s = scan . nextInt ( ) ; int [ ] a = new int [ n ] ; int [ ] b = new int [ n ] ; for ( int i = 0 ; i < n ; i ++ ) { a [ i ] = scan . nextInt ( ) ; } for ( int i = 0 ; i < n ; i ++ ) { b [ i ] = scan . nextInt ( ) ; } boolean result ; if ( a [ 0 ] == 0 ) { result = false ; } else if ( a [ s - 1 ] == 1 ) { result = true ; } else if ( b [ s - 1 ] == 0 ) { result = false ; } else { result = false ; for ( int i = s ; i < n ; i ++ ) { if ( b [ i ] == 1 && a [ i ] == 1 ) { result = true ; break ; } } } System . out . println ( result ? " YES " : " NO " ) ; }
(method_declaration (modifiers) type: (void_type) name: (identifier) parameters: (formal_parameters (formal_parameter type: (array_type element: (type_identifier) dimensions: (dimensions)) name: (identifier))) (throws (type_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)))) (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: (array_type element: (integral_type) dimensions: (dimensions)) declarator: (variable_declarator name: (identifier) value: (array_creation_expression type: (integral_type) dimensions: (dimensions_expr (identifier))))) (local_variable_declaration type: (array_type element: (integral_type) dimensions: (dimensions)) declarator: (variable_declarator name: (identifier) value: (array_creation_expression type: (integral_type) dimensions: (dimensions_expr (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: (identifier)) update: (update_expression (identifier)) body: (block (expression_statement (assignment_expression left: (array_access array: (identifier) index: (identifier)) right: (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 (expression_statement (assignment_expression left: (array_access array: (identifier) index: (identifier)) right: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list)))))) (local_variable_declaration type: (boolean_type) declarator: (variable_declarator name: (identifier))) (if_statement condition: (parenthesized_expression (binary_expression left: (array_access array: (identifier) index: (decimal_integer_literal)) right: (decimal_integer_literal))) consequence: (block (expression_statement (assignment_expression left: (identifier) right: (false)))) alternative: (if_statement condition: (parenthesized_expression (binary_expression left: (array_access array: (identifier) index: (binary_expression left: (identifier) right: (decimal_integer_literal))) right: (decimal_integer_literal))) consequence: (block (expression_statement (assignment_expression left: (identifier) right: (true)))) alternative: (if_statement condition: (parenthesized_expression (binary_expression left: (array_access array: (identifier) index: (binary_expression left: (identifier) right: (decimal_integer_literal))) right: (decimal_integer_literal))) consequence: (block (expression_statement (assignment_expression left: (identifier) right: (false)))) alternative: (block (expression_statement (assignment_expression left: (identifier) right: (false))) (for_statement init: (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (identifier))) condition: (binary_expression left: (identifier) right: (identifier)) update: (update_expression (identifier)) body: (block (if_statement condition: (parenthesized_expression (binary_expression left: (binary_expression left: (array_access array: (identifier) index: (identifier)) right: (decimal_integer_literal)) right: (binary_expression left: (array_access array: (identifier) index: (identifier)) right: (decimal_integer_literal)))) consequence: (block (expression_statement (assignment_expression left: (identifier) right: (true))) (break_statement))))))))) (expression_statement (method_invocation object: (field_access object: (identifier) field: (identifier)) name: (identifier) arguments: (argument_list (ternary_expression condition: (identifier) consequence: (string_literal) alternative: (string_literal)))))))