View Compilation Error

0_0_20409119_7716.cpp:8:7: error: 'LLMOD' does not name a type
 const LLMOD = 1000000007LL;
       ^
0_0_20409119_7716.cpp: In function 'int main()':
0_0_20409119_7716.cpp:14:32: error: 'MOD' was not declared in this scope
         temp = (3 * f1 + f0) % MOD;
                                ^
0_0_20409119_7716.cpp: In function 'int main()':
0_0_20409119_7716.cpp:86:5: error: redefinition of 'int main()'
 int main()
     ^
0_0_20409119_7716.cpp:9:5: note: 'int main()' previously defined here
 int main() 
     ^
0_0_20409119_7716.cpp:103:30: error: 'quickpow2' was not declared in this scope
        Matrix g=quickpow2(n-1);
                              ^