#include using namespace std; #define li long long int #define rep(i,to) for(li i=0;i<((li)(to));i++) #define repp(i,start,to) for(li i=(li)(start);i<((li)(to));i++) #define pb push_back #define sz(v) ((li)(v).size()) #define bgn(v) ((v).begin()) #define eend(v) ((v).end()) #define allof(v) (v).begin(), (v).end() #define dodp(v,n) memset(v,(li)n,sizeof(v)) #define bit(n) (1ll<<(li)(n)) #define mp(a,b) make_pair(a,b) #define rin rep(i,n) #define EPS 1e-10 #define ETOL 1e-8 #define MOD 100000000 typedef pair PI; #define INF bit(60) #define DBGP 1 #define idp if(DBGP) #define F first #define S second #define p2(a,b) idp cout<F<<" , "<<(it)->S<<"] ";}puts("");} #define read2d(a,w,h) rep(i,h)rep(j,w)cin>>a[i][j] #define dump2d(a,w,h) rep(i,h){rep(j,w)cout< PI; int main(){ li n,m,c; cin>>n>>m>>c; if(max(n,m)<=2){ puts("YES"); return 0; } cout<<((n*m)%2 ? "NO" : "YES")<