View Compilation Error

0_0_30684205_30106.cpp: In function 'int main()':
0_0_30684205_30106.cpp:5:20: error: 'B' was not declared in this scope
      while(cin>>a>>B)
                    ^
0_0_30684205_30106.cpp:6:19: error: 'Endl' was not declared in this scope
        cout<<a+b<<Endl;
                   ^