View Compilation Error

0_0_39638300_629.cpp:5:31: error: stray '\243' in program
    5 |     while (scanf("%d %d",&a,&b<a3><a9>!= EOF){
      |                               ^~~~
0_0_39638300_629.cpp:5:32: error: stray '\251' in program
    5 |     while (scanf("%d %d",&a,&b<a3><a9>!= EOF){
      |                                   ^~~~
0_0_39638300_629.cpp: In function 'int main()':
0_0_39638300_629.cpp:5:33: error: ISO C++ forbids comparison between pointer and integer [-fpermissive]
    5 |     while (scanf("%d %d",&a,&b）!= EOF){
      |                                 ^
0_0_39638300_629.cpp:5:40: error: expected ')' before '{' token
    5 |     while (scanf("%d %d",&a,&b）!= EOF){
      |           ~                            ^
      |                                        )