C program to find first and last digit in the given number

#include<stdio.h>

int main()

{

    int n,i,num;

    printf("enter the number \n\n");

    scanf("%d",&n);

    int first,last;

    num=n;

    last=n%10;

    while(n>9)
    {
        n=n/10;
    }

    first=n;

    printf("\nthe first and last number in %d is:%d and %d\n",num,first,last);

}

Output: