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//===----------------------------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is dual licensed under the MIT and the University of Illinois Open
// Source Licenses. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
// <iostream>
// istream cin;
#include <iostream>
#include <cassert>
int main()
{
#if 0
std::cout << "Hello World!\n";
int i;
std::cout << "Enter a number: ";
std::cin >> i;
std::cout << "The number is : " << i << '\n';
#else // 0
assert(std::cin.tie() == &std::cout);
#endif
}