public static void main ( String [ ] args ) {
  long n = 5 ;
  long fac1 = 1 ;
  for ( int i = 2 ;
  i <= n - 1 ;
  i ++ ) fac1 = fac1 * i ;
  long fac2 = fac1 * n ;
  long totalWays = fac1 * fac2 ;
  System . out . println ( totalWays ) ;
}

public static void main ( String [ ] args ) { long n = 5 ; long fac1 = 1 ; for ( int i = 2 ; i <= n - 1 ; i ++ ) fac1 = fac1 * i ; long fac2 = fac1 * n ; long totalWays = fac1 * fac2 ; System . out . println ( totalWays ) ; }
(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) value: (decimal_integer_literal))) (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (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: (binary_expression left: (identifier) right: (decimal_integer_literal))) update: (update_expression (identifier)) body: (expression_statement (assignment_expression left: (identifier) right: (binary_expression left: (identifier) right: (identifier))))) (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (binary_expression left: (identifier) right: (identifier)))) (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (binary_expression left: (identifier) right: (identifier)))) (expression_statement (method_invocation object: (field_access object: (identifier) field: (identifier)) name: (identifier) arguments: (argument_list (identifier))))))