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View Compilation Error

0_0_18341715_7897.cpp:3:1: error: 'include' does not name a type
 include namespace std;
 ^
0_0_18341715_7897.cpp: In function 'int main()':
0_0_18341715_7897.cpp:7:1: error: 'cin' was not declared in this scope
 cin>>a>>b;
 ^
0_0_18341715_7897.cpp:7:1: note: suggested alternative:
In file included from 0_0_18341715_7897.cpp:2:0:
GCC4.9.2/x86_64-w64-mingw32/include/c++/iostream:60:18: note:   'std::cin'
   extern istream cin;  /// Linked to standard input
                  ^
0_0_18341715_7897.cpp:8:1: error: 'cout' was not declared in this scope
 cout<<(a+b);
 ^
0_0_18341715_7897.cpp:8:1: note: suggested alternative:
In file included from 0_0_18341715_7897.cpp:2:0:
GCC4.9.2/x86_64-w64-mingw32/include/c++/iostream:61:18: note:   'std::cout'
   extern ostream cout;  /// Linked to standard output
                  ^


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