View Compilation Error

0_0_29314399_12637.cpp:5:3: error: expected primary-expression before 'int'
   int a,b;
   ^
0_0_29314399_12637.cpp:5:3: error: expected '}' before 'int'
0_0_29314399_12637.cpp:5:3: error: expected ',' or ';' before 'int'
0_0_29314399_12637.cpp:6:3: error: 'cin' does not name a type
   cin>>a>>b;
   ^
0_0_29314399_12637.cpp:7:3: error: 'cout' does not name a type
   cout<<a+b<<endl;
   ^
0_0_29314399_12637.cpp:8:3: error: expected unqualified-id before 'return'
   return 0;
   ^
0_0_29314399_12637.cpp:9:1: error: expected declaration before '}' token
 }
 ^