function Main(input){
    input = input.split(" ");
    
    var sub = function(arry){
        var sum = 0;
        arry.forEach(element => {
            element=parseInt(element);
            sum += element;
        });
        return sum;
    }
    
    if(sub(input)%2 == 0){
        console.log('Yes');
    }else{
        console.log('No');
    }
}

Main(require("fs").readFileSync("/dev/stdin", "utf8")); 