public static void main ( String [ ] args ) {
  FastReader fs = new FastReader ( ) ;
  int l = fs . nextInt ( ) ;
  HashMap < Integer , Integer > hs = new HashMap < > ( ) ;
  for ( int i = 0 ;
  i < 4 ;
  i ++ ) {
    String k = fs . nextLine ( ) ;
    for ( char ch : k . toCharArray ( ) ) {
      if ( ch >= '0' && ch <= '9' ) {
        hs . putIfAbsent ( ( int ) ch , 0 ) ;
        hs . put ( ( int ) ch , hs . get ( ( int ) ch ) + 1 ) ;
      }
    }
  }
  boolean flag = true ;
  for ( Integer key : hs . keySet ( ) ) {
    if ( hs . get ( key ) > l * 2 ) {
      flag = false ;
      break ;
    }
  }
  if ( flag ) {
    System . out . println ( "YES" ) ;
  }
  else {
    System . out . println ( "NO" ) ;
  }
}

public static void main ( String [ ] args ) { FastReader fs = new FastReader ( ) ; int l = fs . nextInt ( ) ; HashMap < Integer , Integer > hs = new HashMap < > ( ) ; for ( int i = 0 ; i < 4 ; i ++ ) { String k = fs . nextLine ( ) ; for ( char ch : k . toCharArray ( ) ) { if ( ch >= '0' && ch <= '9' ) { hs . putIfAbsent ( ( int ) ch , 0 ) ; hs . put ( ( int ) ch , hs . get ( ( int ) ch ) + 1 ) ; } } } boolean flag = true ; for ( Integer key : hs . keySet ( ) ) { if ( hs . get ( key ) > l * 2 ) { 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)))) (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)))) (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)))) (enhanced_for_statement type: (integral_type) name: (identifier) value: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list)) body: (block (if_statement condition: (parenthesized_expression (binary_expression left: (binary_expression left: (identifier) right: (character_literal)) right: (binary_expression left: (identifier) right: (character_literal)))) consequence: (block (expression_statement (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (cast_expression type: (integral_type) value: (identifier)) (decimal_integer_literal)))) (expression_statement (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (cast_expression type: (integral_type) value: (identifier)) (binary_expression left: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (cast_expression type: (integral_type) value: (identifier)))) right: (decimal_integer_literal))))))))))) (local_variable_declaration type: (boolean_type) declarator: (variable_declarator name: (identifier) value: (true))) (enhanced_for_statement type: (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 (identifier))) right: (binary_expression left: (identifier) right: (decimal_integer_literal)))) consequence: (block (expression_statement (assignment_expression left: (identifier) right: (false))) (break_statement))))) (if_statement condition: (parenthesized_expression (identifier)) consequence: (block (expression_statement (method_invocation object: (field_access object: (identifier) field: (identifier)) name: (identifier) arguments: (argument_list (string_literal))))) alternative: (block (expression_statement (method_invocation object: (field_access object: (identifier) field: (identifier)) name: (identifier) arguments: (argument_list (string_literal))))))))