View Compilation Error

0_0_39652639_28234.cpp: In function 'int main()':
0_0_39652639_28234.cpp:4:17: error: expected primary-expression before '%' token
    4 |     while(scanf(%d %d),&a,&b) !=EOF){
      |                 ^
0_0_39652639_28234.cpp:4:18: error: 'd' was not declared in this scope
    4 |     while(scanf(%d %d),&a,&b) !=EOF){
      |                  ^
0_0_39652639_28234.cpp:4:31: error: expected primary-expression before '!=' token
    4 |     while(scanf(%d %d),&a,&b) !=EOF){
      |                               ^~