View Compilation Error

0_0_16250798_8131.cpp: In function 'int main()':
0_0_16250798_8131.cpp:7:1: error: expected ';' before 'int'
 int a,b,c;
 ^
0_0_16250798_8131.cpp:8:12: error: 'a' was not declared in this scope
 while(cin>>a>>b)
            ^
0_0_16250798_8131.cpp:8:15: error: 'b' was not declared in this scope
 while(cin>>a>>b)
               ^
0_0_16250798_8131.cpp:10:12: error: 'ndl' was not declared in this scope
 cout<<a+b<<ndl;
            ^