View Compilation Error

0_0_28936638_6022.cpp: In function 'long long int solve()':
0_0_28936638_6022.cpp:80:23: error: expected ')' at end of input
     ans = (ans % mod %2
                       ^
0_0_28936638_6022.cpp:80:23: error: expected ';' at end of input
0_0_28936638_6022.cpp:80:23: error: expected '}' at end of input