#include<stdio.h>
#include<conio.h>

void tower(int, char, char, char);

void main()
{
    int n;
    clrscr();
    printf("Enter how many disks");
    scanf("%d",&n);
    tower(n,'A','B','C');
    getch();
}

void tower(int n, char beg, char aux, char end)
{
    if(n == 1)
    {
        printf("Disk 1 is transfered from %c to %c\n",beg,end);
        return;
    }

    tower(n-1,beg,end,aux);
    printf("Disk %d is transferred from %c to %c\n",n,beg,end);
    tower(n-1,aux,beg,end);
}