Addition Of First And Last Digit Of A Number

/*     author: CreativeCub.com */   int main() {     int input,firstNumber,lastNumber;     printf("Enter number : ");     scanf("%d",&input);       lastNumber = input % 10;     firstNumber = input;       while (firstNumber >= 10)          firstNumber /= 10;       printf("Addition of first and last number , %d + %d = %d",            firstNumber,lastNumber,firstNumber+lastNumber);       return 0; }

OUTPUT

Enter number : 1234
Addition of first and last number , 1 + 4 = 5