View Compilation Error

0_0_39404403_32403.cpp: In function 'long long int calculateF(long long int, long long int, long long int)':
0_0_39404403_32403.cpp:16:22: error: 'multiplyMatrices' was not declared in this scope
   16 |             result = multiplyMatrices(result, M);
      |                      ^~~~~~~~~~~~~~~~
0_0_39404403_32403.cpp:18:13: error: 'multiplyMatrices' was not declared in this scope
   18 |         M = multiplyMatrices(M, M);
      |             ^~~~~~~~~~~~~~~~