sum of first and last digit

//Write a C program to find sum of first and last digit of a number.
#include<stdio.h>
int main(){

int x,FN,LN;
printf("Enter a Number :");
scanf("%d",&x);
LN=x%10;
while(x>10){
    x=x/10;
    FN=x;
}

printf("Sum of First and last Digit Is :%d\n",FN+LN);
return 0;




}