public static void main ( String [ ] args ) {
  int n , x = 0 ;
  Scanner reader = new Scanner ( System . in ) ;
  n = reader . nextInt ( ) ;
  String [ ] s = new String [ n ] ;
  int i , j , t = 0 ;
  for ( i = 0 ;
  i < n ;
  ++ i ) s [ i ] = reader . next ( ) ;
  for ( i = 1 ;
  i < n - 1 ;
  ++ i ) {
    for ( j = 1 ;
    j < n - 1 ;
    ++ j ) {
      if ( s [ i ] . charAt ( j ) == 'X' && s [ i ] . charAt ( j ) == s [ i - 1 ] . charAt ( j - 1 ) && s [ i ] . charAt ( j ) == s [ i - 1 ] . charAt ( j + 1 ) && s [ i ] . charAt ( j ) == s [ i + 1 ] . charAt ( j + 1 ) && s [ i + 1 ] . charAt ( j - 1 ) == s [ i ] . charAt ( j ) ) ++ t ;
    }
  }
  System . out . println ( t ) ;
}

public static void main ( String [ ] args ) { int n , x = 0 ; Scanner reader = new Scanner ( System . in ) ; n = reader . nextInt ( ) ; String [ ] s = new String [ n ] ; int i , j , t = 0 ; for ( i = 0 ; i < n ; ++ i ) s [ i ] = reader . next ( ) ; for ( i = 1 ; i < n - 1 ; ++ i ) { for ( j = 1 ; j < n - 1 ; ++ j ) { if ( s [ i ] . charAt ( j ) == ' X ' && s [ i ] . charAt ( j ) == s [ i - 1 ] . charAt ( j - 1 ) && s [ i ] . charAt ( j ) == s [ i - 1 ] . charAt ( j + 1 ) && s [ i ] . charAt ( j ) == s [ i + 1 ] . charAt ( j + 1 ) && s [ i + 1 ] . charAt ( j - 1 ) == s [ i ] . charAt ( j ) ) ++ t ; } } System . out . println ( t ) ; }
(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: (integral_type) declarator: (variable_declarator name: (identifier)) declarator: (variable_declarator name: (identifier) value: (decimal_integer_literal))) (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)))))) (expression_statement (assignment_expression left: (identifier) right: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list)))) (local_variable_declaration type: (array_type element: (type_identifier) dimensions: (dimensions)) declarator: (variable_declarator name: (identifier) value: (array_creation_expression type: (type_identifier) dimensions: (dimensions_expr (identifier))))) (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier)) declarator: (variable_declarator name: (identifier)) declarator: (variable_declarator name: (identifier) value: (decimal_integer_literal))) (for_statement init: (assignment_expression left: (identifier) right: (decimal_integer_literal)) condition: (binary_expression left: (identifier) right: (identifier)) update: (update_expression (identifier)) body: (expression_statement (assignment_expression left: (array_access array: (identifier) index: (identifier)) right: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list))))) (for_statement init: (assignment_expression left: (identifier) right: (decimal_integer_literal)) condition: (binary_expression left: (identifier) right: (binary_expression left: (identifier) right: (decimal_integer_literal))) update: (update_expression (identifier)) body: (block (for_statement init: (assignment_expression left: (identifier) right: (decimal_integer_literal)) condition: (binary_expression left: (identifier) right: (binary_expression left: (identifier) right: (decimal_integer_literal))) update: (update_expression (identifier)) body: (block (if_statement condition: (parenthesized_expression (binary_expression left: (binary_expression left: (binary_expression left: (binary_expression left: (binary_expression left: (method_invocation object: (array_access array: (identifier) index: (identifier)) name: (identifier) arguments: (argument_list (identifier))) right: (character_literal)) right: (binary_expression left: (method_invocation object: (array_access array: (identifier) index: (identifier)) name: (identifier) arguments: (argument_list (identifier))) right: (method_invocation object: (array_access array: (identifier) index: (binary_expression left: (identifier) right: (decimal_integer_literal))) name: (identifier) arguments: (argument_list (binary_expression left: (identifier) right: (decimal_integer_literal)))))) right: (binary_expression left: (method_invocation object: (array_access array: (identifier) index: (identifier)) name: (identifier) arguments: (argument_list (identifier))) right: (method_invocation object: (array_access array: (identifier) index: (binary_expression left: (identifier) right: (decimal_integer_literal))) name: (identifier) arguments: (argument_list (binary_expression left: (identifier) right: (decimal_integer_literal)))))) right: (binary_expression left: (method_invocation object: (array_access array: (identifier) index: (identifier)) name: (identifier) arguments: (argument_list (identifier))) right: (method_invocation object: (array_access array: (identifier) index: (binary_expression left: (identifier) right: (decimal_integer_literal))) name: (identifier) arguments: (argument_list (binary_expression left: (identifier) right: (decimal_integer_literal)))))) right: (binary_expression left: (method_invocation object: (array_access array: (identifier) index: (binary_expression left: (identifier) right: (decimal_integer_literal))) name: (identifier) arguments: (argument_list (binary_expression left: (identifier) right: (decimal_integer_literal)))) right: (method_invocation object: (array_access array: (identifier) index: (identifier)) name: (identifier) arguments: (argument_list (identifier)))))) consequence: (expression_statement (update_expression (identifier)))))))) (expression_statement (method_invocation object: (field_access object: (identifier) field: (identifier)) name: (identifier) arguments: (argument_list (identifier))))))