View Compilation Error

0_0_18463510_8089.cpp:2:6: error: variable or field 'main' declared void
 void main
      ^
0_0_18463510_8089.cpp:4:2: error: expected primary-expression before 'int'
  int a, b;
  ^
0_0_18463510_8089.cpp:4:2: error: expected '}' before 'int'
0_0_18463510_8089.cpp:5:2: error: expected unqualified-id before 'while'
  while (scanf("%d%d", &a, &b) != EOF)
  ^
0_0_18463510_8089.cpp:9:1: error: expected declaration before '}' token
 }
 ^