View Compilation Error

0_0_36209415_3357.cpp:5:2: error: expected primary-expression before 'int'
  int N, i , j, a = 0, b = 0, flag = 0;
  ^
0_0_36209415_3357.cpp:5:2: error: expected '}' before 'int'
0_0_36209415_3357.cpp:5:2: error: expected ',' or ';' before 'int'
0_0_36209415_3357.cpp:7:2: error: expected unqualified-id before 'while'
  while(scanf("%d", &N) != EOF) 
  ^