View Compilation Error

0_0_33273860_14749.cpp: In function 'int main()':
0_0_33273860_14749.cpp:22:51: error: invalid operands of types '__gnu_cxx::__enable_if<true, double>::__type {aka double}' and 'const long long int' to binary 'operator%'
    long long x=(sqrt(((a1%mod)*(a3%mod))%mod)/a1)%mod;//,y=a3;
                                                   ^