|| &&

#include <stdio.h>
    int main (){
    int a=8 , b=15 , c=1,d;

    d =(a == 8) && (b >= 15);

    printf("%d\n",d);

    d = (9!=a++)|| ( b == 10+5);

    printf("%d\n",d);

    return 0;
    }