View Compilation Error

0_0_28211705_15345.cpp:5:3: error: expected primary-expression before 'int'
   int i,j;
   ^
0_0_28211705_15345.cpp:5:3: error: expected '}' before 'int'
0_0_28211705_15345.cpp:5:3: error: expected ',' or ';' before 'int'
0_0_28211705_15345.cpp:6:3: error: 'cin' does not name a type
   cin>>i>>j;
   ^
0_0_28211705_15345.cpp:7:6: error: expected constructor, destructor, or type conversion before '(' token
   sum(i,j);
      ^
0_0_28211705_15345.cpp:8:1: error: expected declaration before '}' token
 }
 ^