/in/foo.c:1:24: warning: extra tokens at end of #include directive
 #include<bits/stdc++.h>，using namespace std;int main(){int a,b;cin>>a>>b;a += b;cout<<a<<endl;return 0;}
                        ^
/in/foo.c:1:107: fatal error: bits/stdc++.h: No such file or directory
 #include<bits/stdc++.h>，using namespace std;int main(){int a,b;cin>>a>>b;a += b;cout<<a<<endl;return 0;}
                                                                                                           ^
compilation terminated.