If a four-digit number is input through the keyboard, write a program to obtain the sum of the first and last digit of this number.

main()
{
 int num,f,l,sum;
 printf("Enter a four digit number\n");
 scanf("%d",&num);
 l=num%10; f=num/1000;
 sum=f+l;
 printf("Sum of first and last digit of %d is %d",num,sum);
}

output:-