View Compilation Error

0_0_36833339_1596.cpp:4:3: error: expected primary-expression before 'int'
   int a,b;
   ^
0_0_36833339_1596.cpp:4:3: error: expected '}' before 'int'
0_0_36833339_1596.cpp:4:3: error: expected ',' or ';' before 'int'
0_0_36833339_1596.cpp:5:8: error: expected constructor, destructor, or type conversion before '(' token
   scanf("%d %d",&a,&b);
        ^
0_0_36833339_1596.cpp:6:9: error: expected constructor, destructor, or type conversion before '(' token
   printf("%d\n",a+b);
         ^
0_0_36833339_1596.cpp:7:3: error: expected unqualified-id before 'return'
   return 0
   ^
0_0_36833339_1596.cpp:11:1: error: expected declaration before '}' token
 }
 ^