public static void main ( String [ ] args ) {
  BufferedReader br = new BufferedReader ( new InputStreamReader ( System . in ) ) ;
  try {
    StringTokenizer st = new StringTokenizer ( br . readLine ( ) ) ;
    int col = Integer . parseInt ( st . nextToken ( ) ) ;
    int row = Integer . parseInt ( st . nextToken ( ) ) ;
    char [ ] [ ] arr = new char [ row ] [ col ] ;
    for ( int i = 0 ;
    i < row ;
    i ++ ) {
      String line = br . readLine ( ) ;
      arr [ i ] = line . toCharArray ( ) ;
    }
    for ( int j = 0 ;
    j < col ;
    j ++ ) {
      String nl = "" ;
      for ( int i = 0 ;
      i < row ;
      i ++ ) {
        nl = nl + arr [ i ] [ j ] + arr [ i ] [ j ] ;
      }
      System . out . println ( nl ) ;
      System . out . println ( nl ) ;
    }
  }
  catch ( IOException e ) {
  }
}

public static void main ( String [ ] args ) { BufferedReader br = new BufferedReader ( new InputStreamReader ( System . in ) ) ; try { StringTokenizer st = new StringTokenizer ( br . readLine ( ) ) ; int col = Integer . parseInt ( st . nextToken ( ) ) ; int row = Integer . parseInt ( st . nextToken ( ) ) ; char [ ] [ ] arr = new char [ row ] [ col ] ; for ( int i = 0 ; i < row ; i ++ ) { String line = br . readLine ( ) ; arr [ i ] = line . toCharArray ( ) ; } for ( int j = 0 ; j < col ; j ++ ) { String nl = " " ; for ( int i = 0 ; i < row ; i ++ ) { nl = nl + arr [ i ] [ j ] + arr [ i ] [ j ] ; } System . out . println ( nl ) ; System . out . println ( nl ) ; } } catch ( IOException e ) { } }
(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 (object_creation_expression type: (type_identifier) arguments: (argument_list (field_access object: (identifier) field: (identifier)))))))) (try_statement body: (block (local_variable_declaration type: (type_identifier) declarator: (variable_declarator name: (identifier) value: (object_creation_expression type: (type_identifier) arguments: (argument_list (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 (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 (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)) 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 (local_variable_declaration type: (type_identifier) declarator: (variable_declarator name: (identifier) value: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list)))) (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 (local_variable_declaration type: (type_identifier) declarator: (variable_declarator name: (identifier) value: (string_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: (identifier)) update: (update_expression (identifier)) body: (block (expression_statement (assignment_expression left: (identifier) right: (binary_expression left: (binary_expression left: (identifier) right: (array_access array: (array_access array: (identifier) index: (identifier)) index: (identifier))) right: (array_access array: (array_access array: (identifier) index: (identifier)) index: (identifier))))))) (expression_statement (method_invocation object: (field_access object: (identifier) field: (identifier)) name: (identifier) arguments: (argument_list (identifier)))) (expression_statement (method_invocation object: (field_access object: (identifier) field: (identifier)) name: (identifier) arguments: (argument_list (identifier))))))) (catch_clause (catch_formal_parameter (catch_type (type_identifier)) name: (identifier)) body: (block)))))