printing bigger number goto statement in c

 #include <stdio.h>

int main()

{

    int i,num,a=1,b;

    for(i=0;i<100;i++)

    {

         printf("Enter number:-\nEnter 0 to quit the program:-\n");

         scanf("%d",&num);

         if(a<num)

         a=num;

         else

         printf("Number is less than previous bigger number\n");

        if(num==0)

        {

            goto QUIT;

        }

        printf("The bigger number is %d \n",a);

    }

     QUIT:

    printf("Quitting the program\n");

    printf("BYE BYE !!!!!");

    return 0;

}