Its a simple problem you should have tried this himself. Please find the requested program as follows -
main()
{
int a1, a2, a3, a4, a5;
printf("Enter First Number\n");
scanf("%d", &a1);
printf("Enter Second Number\n");
scanf("%d", &a2);
printf("Enter Third Number\n");
scanf("%d", &a3);
printf("Enter Fourth Number\n");
scanf("%d", &a4);
printf("Enter Fifth Number\n");
scanf("%d", &a5);
printf("Sum of %d + %d + %d + %d + %d = %d", a1, a2, a3, a4, a5, a1+a2+a3+a4+a5);
}