View Compilation Error

0_0_31533570_21218.cpp: In function 'int main()':
0_0_31533570_21218.cpp:41:19: error: expected primary-expression before 'long'
     ret ^= (solve<long long, __int128>(1LL << j, (long long)i, n - en * i, en - st + 1) & 1) << j;
                   ^
0_0_31533570_21218.cpp:41:19: error: expected ')' before 'long'