hii,
I think the following code works.
worked for me, so you check out:
#include<stdio.h>
int main(){
long long a=14354;
long long b=5323;
long long c=a*b;
printf("%lld\n",c);
getch();
return 0;
}
I dont think there is any header file in c with the name "cstdio".
Also if you want to view result you must add getch() to yuor program.