Help me in solving LPYAS162 problem

My issue

include <stdio.h>
void fib_series(int n)
{
int a=0,b=1,next;
for(int i=0;i<n;i++)
printf(“%d”,a);
next = a+b;
a = b;
b= next;
}
int main() {
int V;
scanf(“%d”,&V);
fib_series(V);
printf(“\n”);
return 0;

}
find the error

My code

#include <stdio.h>
void fib_series(int n)
{
 int a=0,b=1,next;
 for(int i=0;i<n;i++)
 printf("%d",a);
 next = a+b;
 a = b;
 b= next;
}
int main() {
	int V;
	scanf("%d",&V);
	fib_series(V);
	printf("\n");
	return 0;

}


Learning course: Roadmap to 3*
Problem Link: https://www.codechef.com/learn/course/klu-roadmap-3star/KLURMP300B/problems/LPYAS162