View Compilation Error

0_0_34346473_7892.cpp: In function 'int main()':
0_0_34346473_7892.cpp:5:22: error: 'N' was not declared in this scope
  while ((scanf("%d",&N)) ! = EOF)
                      ^
0_0_34346473_7892.cpp:5:26: error: expected ')' before '!' token
  while ((scanf("%d",&N)) ! = EOF)
                          ^
0_0_34346473_7892.cpp:5:28: error: expected primary-expression before '=' token
  while ((scanf("%d",&N)) ! = EOF)
                            ^