foo.cc: In function ‘int main()’:
foo.cc:57:30: error: ‘j）’ was not declared in this scope
   57 |     for (int j = 0; j < 3; ++j）{result = (result + dp[n][j]) % MOD;}
      |                              ^~~
foo.cc:57:33: error: expected ‘)’ before ‘{’ token
   57 |     for (int j = 0; j < 3; ++j）{result = (result + dp[n][j]) % MOD;}
      |         ~                       ^
      |                                 )