#include<bits/stdc++.h>
using namespace std;
#define rep(i,n) for(int i=0;i<n;i++)
int main(){
    int a,b,k; cin>>a>>b>>k;
    rep(i,a+1)rep(j,b+1)if(i*j+(a-i)*(b-j)==k)return puts("Yes")*0;
    return puts("No")*0;
}
