public static void main ( String [ ] args ) {
  Scanner sc = new Scanner ( System . in ) ;
  int k = sc . nextInt ( ) ;
  Map < Integer , Integer > map = new HashMap < > ( ) ;
  boolean flag = true ;
  for ( int i = 0 ;
  i < 4 ;
  i ++ ) {
    String temp = sc . next ( ) ;
    for ( int j = 0 ;
    j < temp . length ( ) ;
    j ++ ) {
      if ( temp . charAt ( j ) != '.' ) {
        int num = temp . charAt ( j ) - '0' ;
        if ( map . containsKey ( num ) ) {
          map . put ( num , map . get ( num ) + 1 ) ;
        }
        else map . put ( num , 1 ) ;
      }
    }
  }
  sc . close ( ) ;
  for ( Map . Entry < Integer , Integer > entry : map . entrySet ( ) ) {
    if ( entry . getValue ( ) > 2 * k ) {
      flag = false ;
      break ;
    }
  }
  if ( flag ) System . out . println ( "YES" ) ;
  else System . out . println ( "NO" ) ;
}

public static void main ( String [ ] args ) { Scanner sc = new Scanner ( System . in ) ; int k = sc . nextInt ( ) ; Map < Integer , Integer > map = new HashMap < > ( ) ; boolean flag = true ; for ( int i = 0 ; i < 4 ; i ++ ) { String temp = sc . next ( ) ; for ( int j = 0 ; j < temp . length ( ) ; j ++ ) { if ( temp . charAt ( j ) != ' . ' ) { int num = temp . charAt ( j ) - '0' ; if ( map . containsKey ( num ) ) { map . put ( num , map . get ( num ) + 1 ) ; } else map . put ( num , 1 ) ; } } } sc . close ( ) ; for ( Map . Entry < Integer , Integer > entry : map . entrySet ( ) ) { if ( entry . getValue ( ) > 2 * k ) { flag = false ; break ; } } if ( flag ) System . out . println ( " YES " ) ; else System . out . println ( " NO " ) ; }
(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)))) (local_variable_declaration type: (generic_type (type_identifier) (type_arguments (type_identifier) (type_identifier))) declarator: (variable_declarator name: (identifier) value: (object_creation_expression type: (generic_type (type_identifier) (type_arguments)) arguments: (argument_list)))) (local_variable_declaration type: (boolean_type) declarator: (variable_declarator name: (identifier) value: (true))) (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 (local_variable_declaration type: (type_identifier) 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: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list))) update: (update_expression (identifier)) body: (block (if_statement condition: (parenthesized_expression (binary_expression left: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (identifier))) right: (character_literal))) consequence: (block (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (binary_expression left: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (identifier))) right: (character_literal)))) (if_statement condition: (parenthesized_expression (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (identifier)))) consequence: (block (expression_statement (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (identifier) (binary_expression left: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (identifier))) right: (decimal_integer_literal)))))) alternative: (expression_statement (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (identifier) (decimal_integer_literal))))))))))) (expression_statement (method_invocation object: (identifier) name: (identifier) arguments: (argument_list))) (enhanced_for_statement type: (generic_type (scoped_type_identifier (type_identifier) (type_identifier)) (type_arguments (type_identifier) (type_identifier))) name: (identifier) value: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list)) body: (block (if_statement condition: (parenthesized_expression (binary_expression left: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list)) right: (binary_expression left: (decimal_integer_literal) right: (identifier)))) consequence: (block (expression_statement (assignment_expression left: (identifier) right: (false))) (break_statement))))) (if_statement condition: (parenthesized_expression (identifier)) consequence: (expression_statement (method_invocation object: (field_access object: (identifier) field: (identifier)) name: (identifier) arguments: (argument_list (string_literal)))) alternative: (expression_statement (method_invocation object: (field_access object: (identifier) field: (identifier)) name: (identifier) arguments: (argument_list (string_literal)))))))