public static void main ( String [ ] args ) {
  Scanner s = new Scanner ( System . in ) ;
  int t = s . nextInt ( ) ;
  while ( t -- > 0 ) {
    int n = s . nextInt ( ) ;
    int [ ] [ ] arr = new int [ n ] [ n ] ;
    for ( int i = 0 ;
    i < n ;
    i ++ ) {
      String str = s . next ( ) ;
      for ( int j = 0 ;
      j < n ;
      j ++ ) {
        arr [ i ] [ j ] = str . charAt ( j ) ;
      }
    }
    getAns ( n , arr ) ;
  }
}

public static void main ( String [ ] args ) { Scanner s = new Scanner ( System . in ) ; int t = s . nextInt ( ) ; while ( t -- > 0 ) { int n = s . nextInt ( ) ; int [ ] [ ] arr = new int [ n ] [ n ] ; for ( int i = 0 ; i < n ; i ++ ) { String str = s . next ( ) ; for ( int j = 0 ; j < n ; j ++ ) { arr [ i ] [ j ] = str . charAt ( j ) ; } } getAns ( n , arr ) ; } }
(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)))) (while_statement condition: (parenthesized_expression (binary_expression left: (update_expression (identifier)) right: (decimal_integer_literal))) body: (block (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: (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)))) (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: (array_access array: (array_access array: (identifier) index: (identifier)) index: (identifier)) right: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (identifier))))))))) (expression_statement (method_invocation name: (identifier) arguments: (argument_list (identifier) (identifier))))))))