public static void main ( String [ ] args ) {
  Scanner reader = new Scanner ( System . in ) ;
  long n , m , k ;
  n = reader . nextLong ( ) ;
  m = reader . nextLong ( ) ;
  k = reader . nextLong ( ) ;
  if ( ( ( n + m ) % 2 == 1 ) && ( k == - 1 ) ) System . out . println ( "0" ) ;
  else System . out . println ( pow ( pow ( 2 , ( n - 1 ) ) , m - 1 ) ) ;
  reader . close ( ) ;
}

public static void main ( String [ ] args ) { Scanner reader = new Scanner ( System . in ) ; long n , m , k ; n = reader . nextLong ( ) ; m = reader . nextLong ( ) ; k = reader . nextLong ( ) ; if ( ( ( n + m ) % 2 == 1 ) && ( k == - 1 ) ) System . out . println ( "0" ) ; else System . out . println ( pow ( pow ( 2 , ( n - 1 ) ) , m - 1 ) ) ; reader . close ( ) ; }
(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)) declarator: (variable_declarator name: (identifier)) declarator: (variable_declarator name: (identifier))) (expression_statement (assignment_expression left: (identifier) right: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list)))) (expression_statement (assignment_expression left: (identifier) right: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list)))) (expression_statement (assignment_expression left: (identifier) right: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list)))) (if_statement condition: (parenthesized_expression (binary_expression left: (parenthesized_expression (binary_expression left: (binary_expression left: (parenthesized_expression (binary_expression left: (identifier) right: (identifier))) right: (decimal_integer_literal)) right: (decimal_integer_literal))) right: (parenthesized_expression (binary_expression left: (identifier) right: (unary_expression operand: (decimal_integer_literal)))))) consequence: (expression_statement (method_invocation object: (field_access object: (identifier) field: (identifier)) name: (identifier) arguments: (argument_list (string_literal)))) alternative: (expression_statement (method_invocation object: (field_access object: (identifier) field: (identifier)) name: (identifier) arguments: (argument_list (method_invocation name: (identifier) arguments: (argument_list (method_invocation name: (identifier) arguments: (argument_list (decimal_integer_literal) (parenthesized_expression (binary_expression left: (identifier) right: (decimal_integer_literal))))) (binary_expression left: (identifier) right: (decimal_integer_literal)))))))) (expression_statement (method_invocation object: (identifier) name: (identifier) arguments: (argument_list)))))