View Compilation Error

0_0_34243849_27339.cpp: In function 'int main()':
0_0_34243849_27339.cpp:91:71: error: expected primary-expression before ';' token
     for (int i = 0; i < len; i ++) ans[i] = 1ll * a[0] * ans[i] % mod,;
                                                                       ^