int index = (int)[[self.navigationController viewControllers]indexOfObject:self]; [self.navigationController popToViewController:[self.navigationController.viewControllers objectAtIndex:(index -2)] animated:YES];
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int index = (int)[[self.navigationController viewControllers]indexOfObject:self]; [self.navigationController popToViewController:[self.navigationController.viewControllers objectAtIndex:(index -2)] animated:YES];
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