#include <stdio.h>
#include <string.h>

int main() {
  char n[256], m[256];
  scanf("%s %s", n, m);

  int sizeN=strlen(n), sizeM=strlen(m);
  if ((n[sizeN-1]-'0')%2==0) {
    if ((m[sizeM-1]-'0')%2==0) {
      printf("Yes\n");
    } else ("No\n");
  } else {
    if ((m[sizeM-1]-'0')%2==0 && m[sizeM-2]-'0'>=1) {
      printf("Yes\n");
    } else {
      printf("No\n");
    }
  }
  
  return 0;
}
// 10^10 = 10000000000