View Compilation Error

0_0_27054914_26998.cpp: In function 'int main()':
0_0_27054914_26998.cpp:4:31: error: expected ')' before '!' token
 while(scanf("%c%c%c",&a,&b,&c)!EOF)
                               ^
0_0_27054914_26998.cpp:4:35: error: expected ';' before ')' token
 while(scanf("%c%c%c",&a,&b,&c)!EOF)
                                   ^