View Compilation Error

In file included from GCC4.9.2/x86_64-w64-mingw32/include/crtdefs.h:10:0,
                 from GCC4.9.2/x86_64-w64-mingw32/include/stdio.h:9,
                 from 0_0_18004255_19285.cpp:1:
0_0_18004255_19285.cpp: In function 'int main()':
0_0_18004255_19285.cpp:12:16: error: expected primary-expression before 'long'
   __int64 ans2=__int64(ans1);
                ^