View Compilation Error

0_0_7925690_10966.cpp: In function `int main()':
0_0_7925690_10966.cpp:6: error: no match for 'operator>' in '(&std::cin)->std::basic_istream<_CharT, _Traits>::operator>> [with _CharT = char, _Traits = std::char_traits<char>](((int&)(&n1))) > n2'