4(v)

#include<stdio.h>
#include<math.h>
int main()
{
    int n, count, first, last, swap;
    printf("Enter a number: ");
    scanf("%d", &n);
    count=log10(n);
    last=n%10;
    first= n/(pow(10,count));
    swap= fmod(n,(pow(10,count)));
    swap/=10;
    printf("Swaping first and last digits: %d%d%d", last,swap,first);
    return 0;
}