/in/foo.cc: In member function 'void s1::solve()':
/in/foo.cc:50:26: warning: format '%d' expects argument of type 'int', but argument 2 has type 'long long int' [-Wformat=]
         printf("%d\n",ans);
                          ^
/in/foo.cc: In member function 'void s2::solve()':
/in/foo.cc:77:28: warning: format '%lld' expects argument of type 'long long int', but argument 2 has type 'int' [-Wformat=]
         printf("%lld\n",ans);
                            ^
/in/foo.cc: In function 'int main()':
/in/foo.cc:88:13: error: expected '}' at end of input
     return 0;
             ^