#include<iostream>
#include<conio.h>
using namespace std;
int main()
{
int k;
char i,j,m,ch;
cout<<endl<<endl;
cout<<"*****************************************************************************";
cout<<endl<<endl;
cout<<"ENETR LAST ALPHABET:";
cin>>ch;
for(i=(int)'a';i<=(int)ch;i++)
{
for(k=(int)ch;k>i;k--)
{
cout<<" ";
}

for(j='a';j<=i;j++)
{
cout<<j;
}
for(m=i-1;m>='a';m--)
{
cout<<m;
}

cout<<endl<<endl;
}
cout<<"\n*****************************************************************************";
getch();
return 0;
}

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