#include <iostream>
#include <vector>
#include <algorithm>
using namespace std;
int count_profit(int length, int price) {
return price * length;
}
int main(){
int a, b, c;
cin >> a >> b >> c;
if (a * b == c){cout << "YES";}
else {cout << "NO";}
return 0;
}
I2luY2x1ZGUgPGlvc3RyZWFtPgojaW5jbHVkZSA8dmVjdG9yPgojaW5jbHVkZSA8YWxnb3JpdGhtPgp1c2luZyBuYW1lc3BhY2Ugc3RkOwoKaW50IGNvdW50X3Byb2ZpdChpbnQgbGVuZ3RoLCBpbnQgcHJpY2UpIHsKICAgIHJldHVybiBwcmljZSAqIGxlbmd0aDsKfQoKaW50IG1haW4oKXsKICAgIGludCBhLCBiLCBjOwogICAgCiAgICBjaW4gPj4gYSA+PiBiID4+IGM7CiAgICAKICAgIGlmIChhICogYiA9PSBjKXtjb3V0IDw8ICJZRVMiO30KICAgIGVsc2Uge2NvdXQgPDwgIk5PIjt9CgogICAgcmV0dXJuIDA7CiAgICAKfQo=