View Compilation Error

0_0_39846112_12508.cpp:2:5: error: cannot declare '::main' to be a global variable
    2 | int main{
      |     ^~~~
0_0_39846112_12508.cpp:3:9: error: expected primary-expression before 'int'
    3 |         int a,b;
      |         ^~~
0_0_39846112_12508.cpp:3:9: error: expected '}' before 'int'
0_0_39846112_12508.cpp:2:9: note: to match this '{'
    2 | int main{
      |         ^
0_0_39846112_12508.cpp:4:14: error: expected constructor, destructor, or type conversion before '(' token
    4 |         scanf("%d %d",&a,&b);
      |              ^
0_0_39846112_12508.cpp:5:15: error: expected constructor, destructor, or type conversion before '(' token
    5 |         printf("%d",a+b);
      |               ^
0_0_39846112_12508.cpp:6:9: error: expected unqualified-id before 'return'
    6 |         return 0;
      |         ^~~~~~
0_0_39846112_12508.cpp:7:1: error: expected declaration before '}' token
    7 | }
      | ^