public static void main ( String [ ] args ) {
  Scanner sc = new Scanner ( System . in ) ;
  int k = Integer . parseInt ( sc . next ( ) ) ;
  int [ ] map = new int [ 10 ] ;
  for ( int i = 0 ;
  i < 4 ;
  i ++ ) {
    for ( char c : sc . next ( ) . toCharArray ( ) ) {
      if ( c != '.' ) {
        map [ c - '0' ] ++ ;
        if ( map [ c - '0' ] > 2 * k ) {
          System . out . println ( "NO" ) ;
          return ;
        }
      }
    }
  }
  System . out . println ( "YES" ) ;
}

public static void main ( String [ ] args ) { Scanner sc = new Scanner ( System . in ) ; int k = Integer . parseInt ( sc . next ( ) ) ; int [ ] map = new int [ 10 ] ; for ( int i = 0 ; i < 4 ; i ++ ) { for ( char c : sc . next ( ) . toCharArray ( ) ) { if ( c != ' . ' ) { map [ c - '0' ] ++ ; if ( map [ c - '0' ] > 2 * k ) { System . out . println ( " NO " ) ; return ; } } } } System . out . println ( " YES " ) ; }
(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 (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 (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: (block (enhanced_for_statement type: (integral_type) name: (identifier) value: (method_invocation object: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list)) name: (identifier) arguments: (argument_list)) body: (block (if_statement condition: (parenthesized_expression (binary_expression left: (identifier) right: (character_literal))) consequence: (block (expression_statement (update_expression (array_access array: (identifier) index: (binary_expression left: (identifier) right: (character_literal))))) (if_statement condition: (parenthesized_expression (binary_expression left: (array_access array: (identifier) index: (binary_expression left: (identifier) right: (character_literal))) right: (binary_expression left: (decimal_integer_literal) right: (identifier)))) consequence: (block (expression_statement (method_invocation object: (field_access object: (identifier) field: (identifier)) name: (identifier) arguments: (argument_list (string_literal)))) (return_statement))))))))) (expression_statement (method_invocation object: (field_access object: (identifier) field: (identifier)) name: (identifier) arguments: (argument_list (string_literal))))))