foo.cc:10:20: warning: missing terminating " character
  print ("%d ("%d,%d",b,a
                    ^
foo.cc:10:20: error: missing terminating " character
  print ("%d ("%d,%d",b,a
                    ^~~~~
foo.cc:8:5: error: expected initializer before 'int'
     int a,b;
     ^~~
foo.cc:9:11: error: expected constructor, destructor, or type conversion before '(' token
     scanf ("%d,%d",&a,&b
           ^
foo.cc:13:1: error: expected declaration before '}' token
 }
 ^

[Hydro](https://hydro.ac)提供评测服务