/in/foo.cc: In function 'int main()':
/in/foo.cc:33:21: warning: statement has no effect [-Wunused-value]
       dp[i][j][k][0]%MOD;
       ~~~~~~~~~~~~~~^~~~
/in/foo.cc:34:21: warning: statement has no effect [-Wunused-value]
       dp[i][j][k][1]%MOD;
       ~~~~~~~~~~~~~~^~~~
/in/foo.cc:14:13: warning: unused variable 'ans' [-Wunused-variable]
   int n,m,p,ans=0;
             ^~~