#include <bits/stdc++.h>
#define rep(i,n) for(int i = 0; i < (n); ++i)
#define srep(i,s,t) for (int i = s; i < t; ++i)
#define drep(i,n) for(int i = (n)-1; i >= 0; --i)
using namespace std;
typedef long long int ll;
typedef pair<int,int> P;
#define yn {puts("YES");}else{puts("NO");}
#define MAX_N 200005

int main() {
    int x, y;
    cin >> x >> y;
    int flag = 0;

    int dx[9] = {0,-2,-2,-1,-1,1,1,2,2};
    int dy[9] = {0,-1,1,-2,2,-2,2,-1,1};

    rep(i,9*9*9){
        int ii = i;
        int a = 0, b = 0;
        rep(j,3){
            a += dx[ii % 9];
            b += dy[ii % 9];
            ii /= 9;
        }
        if(x == a && y == b)flag = 1;
    }

    if(flag)yn;
    return 0;
}