Some help me with the output

Question

#include<stdio.h>
Int main()
{
int a, b=8, c=2, d=0;
b+=c;
d+=b;
a=d*a;
a=++a;
printf(“%d, %d, %d, %d”, a.b,c,d);
return 0;

Answer 1

Barakadir Hassan i have put comments where needed
https://code.sololearn.com/cvijIAMpWu2Q/?ref=app

Answer 2

Need initialisation of int a with some value.. can't calculation without it a=d*a.. if you try get junk value