Displaying fibonacci numbers less than given number

To know about Fibonacci numbers, have a look at it in below link

https://www.mathsisfun.com/numbers/fibonacci-sequence.html

#include<stdio.h>

main(){
   
   
   int num1=0,
       num2=1,
       fib,i,num;
       
       //this number can be even non Fibonacci number
       printf("Enter the upper limit for fibonacci number : ");
       scanf("%d",&num);
       
       printf("0\t1\t");
       //infinite loop with a terminating condition inside
       while(1)
       {
           fib=num1+num2;
           
           if(fib<=num)
              printf("%d\t",fib);
           else
               break;
           num1=num2;
           num2=fib;
       }

}