View Compilation Error

0_0_31888984_14486.cpp: In function 'long long int POW(long long int, long long int)':
0_0_31888984_14486.cpp:28:17: error: expected primary-expression before '%' token
  return sum%mod;%0
                 ^
0_0_31888984_14486.cpp:28:18: error: expected '}' at end of input
  return sum%mod;%0
                  ^