#include<stdio.h> int main() { char ch; scanf("%c",&ch); if(ch%2==0){ printf("NO"); }else if(ch%2!=0){ printf("YES"); } return 0;

}

#include <stdio.h>

int main() { char a; scanf("%c", &a); if (a % 2 == 0) { printf("NO"); } else { printf("YES"); } return 0; }