View Compilation Error

0_0_24029914_31236.cpp: In function 'int main()':
0_0_24029914_31236.cpp:5:28: error: expected ')' before ';' token
 while(~scanf("%d %d",&a,&b);)
                            ^
0_0_24029914_31236.cpp:5:29: error: expected primary-expression before ')' token
 while(~scanf("%d %d",&a,&b);)
                             ^