View Compilation Error

0_0_39181325_12507.cpp: In function 'long long int binpow(long long int, long long int)':
0_0_39181325_12507.cpp:15:31: error: expected ';' before ':' token
   15 |         return res * res % MOD:
      |                               ^
      |                               ;
0_0_39181325_12507.cpp:15:31: error: expected primary-expression before ':' token