write a c program to print febonacci series upto a given number

#include <stdio.h>
#include <conio.h>
int main() {
    int num1=0,num2=1,i,upto,feb;
    printf("Enter a number upto which you want print Fibonacci series : ");
    scanf("%d",&upto);
    printf("Fibonacci series upto %d is:n",upto);
    while(upto>=feb)
    {
        printf("%d n",feb);
        feb=num1+num2;
        num1=num2;
        num2=feb;
    }
    return 0;
    getch();
}