View Compilation Error

0_0_31022076_5915.cpp:3:7: error: expected nested-name-specifier before 'namepace'
 using namepace std;
       ^
0_0_31022076_5915.cpp: In function 'int main()':
0_0_31022076_5915.cpp:7:11: error: 'cin' was not declared in this scope
    while( cin>>a>>b!=EOF)
           ^
0_0_31022076_5915.cpp:7:11: note: suggested alternative:
In file included from 0_0_31022076_5915.cpp:1:0:
GCC4.9.2/x86_64-w64-mingw32/include/c++/iostream:60:18: note:   'std::cin'
   extern istream cin;  /// Linked to standard input
                  ^
0_0_31022076_5915.cpp:10:6: error: expected ';' before 'cuot'
      cuot<<c<<endl;
      ^