Code:#include<conio.h> #include<stdio.h> void main(void) { int d1,d2,d3,d4,d5,sum; long num; printf("Enter a five digit number: "); scanf("%ld",&num); d1=(num%10); d2=(num%100)/10; d3=(num%1000)/100; d4=(num%10000)/1000; d5=(num/1000); sum=d1+d2+d3+d4+d5; printf("\n The sum of the digis is: %d",sum); }