union marks        \\ A
    {
    float perc;    \\ B
    char grade;    \\ C
    }
main ( )
   {
    union marks student1;    \\ E
    student1.perc = 98.5;    \\ F
    printf( “Marks are %f   address is  %16lu\n”, student1.perc, &student1.perc);  \\ G 
    student1.grade = ‘A’’;    \\ H    
    printf( “Grade is  %c  address is  %16lu\n”, student1.grade, &student1.grade);    \\ I
   }