#import <Foundation/Foundation.h>
#include <stdio.h>

int main(int argc, const char * argv[]) {
    @autoreleasepool {
        int a,b;
        NSString *output_str;
        scanf("%d %d", &a, &b);
        if (!(a%2 && b%2)) {
            output_str = @"No";
        }
        else {
            output_str = @"Yes";
        }
        
        NSFileHandle *fileHandle = [NSFileHandle fileHandleWithStandardOutput];
        [fileHandle writeData:[output_str dataUsingEncoding:NSUTF8StringEncoding]];
        [fileHandle writeData:[@"\n" dataUsingEncoding:NSUTF8StringEncoding]];
        [fileHandle closeFile];
    }
    return 0;
}
