#include <iostream>
using namespace std;
#define rep(i,n) for(int i=0;i<(n);++i)

int main(){
  int n,m,k;cin>>n>>m>>k;
  rep(i,n+1){
    rep(j,m+1){
      if(n*j+m*i-2*i*j==k){
        cout<<"Yes"<<endl;
        return 0;
      }
    }
  }
  cout<<"No"<<endl;
}