/* Pattern Problem
    1
   21A
  321AB
 4321ABC
54321ABCD
 */

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

void main()
{
    int  i, j ;
    clrscr();
    printf("Required Pattern is as follows:\n");
    for(i=1; i<=5; i++)
        {
            /* Managing spaces */
            for(j=1 ; j<=5-i ; j++)
                printf(" ") ;
            /* Prinitng digits*/
            for(j=i ; j>=1 ; j--)
                printf("%d", j) ;
            /* Printing alphabets*/
            for(j=1 ; j<i ; j++)
                printf("%c", j+64) ;
            printf("\n") ;
        }
    getch() ;
}

/*
Output:

Required Pattern is as follows:
    1
   21A
  321AB
 4321ABC
54321ABCD

*/