View Compilation Error

0_0_38778764_27485.cpp: In function 'int main()':
0_0_38778764_27485.cpp:58:34: error: 'power_mod' was not declared in this scope
   58 |                 printf("%lld\n", power_mod(2, min1)*power_mod(3, min2) % mod);
      |                                  ^~~~~~~~~