Effect of one control specification on another in printf statement.

CASE A :

#include<stdio.h>
#include<conio.h>
int main()
{ int y = (8,9);
    printf("%d ,%f , %lf", 8.76, 8.987654);
    getch();
    return 0;
}

CASE B:

#include<stdio.h>
#include<conio.h>
int main()
{ int y = (8,9);
    printf("%d, %f, %lf",8 , 8.987654);
    getch();
    return 0;
}

Output in A:
-1202590843,-38367267551084304000000000000000000000000000.000000,0.000000

Output in B:
8,8.987654,0.000000
how is the value to be printed differing in both cases that is when i give wrng value fr %d conversion specification in CASE A ,then it also prints wrong value of its immediate format string ,so here %f tries to print some wiered value each time while the other % lf coreesponds to print the value 0.000000 so hw is it that this %d format string affecting the values to be printed corresponding to other format strings ,becoz when in CASE B ,on giving correct value for %d remove,i m getting crect answers .