View Compilation Error

0_0_30408849_16259.cpp: In function 'int main()':
0_0_30408849_16259.cpp:125:17: error: 'ans' was not declared in this scope
   if(n <= maxn) ans = (phi[n]-1+mod)%mod*two%mod;
                 ^
0_0_30408849_16259.cpp:126:8: error: 'ans' was not declared in this scope
   else ans = djSieve(n)-1+mod)%mod*two%mod;
        ^
0_0_30408849_16259.cpp:127:10: error: 'ans' was not declared in this scope
   output(ans);putchar('\n');
          ^