/******************************************************************************
Welcome to GDB Online.
GDB online is an online compiler and debugger tool for C, C++, Python, PHP, Ruby,
C#, OCaml, VB, Perl, Swift, Prolog, Javascript, Pascal, HTML, CSS, JS
Code, Compile, Run and Debug online from anywhere in world.
*******************************************************************************/
#include <stdio.h>
#include<string.h>
void reverse(char a[],int n){
int i=0,j=n-1;
while(i<j){
char temp=a[i];
a[i]=a[j];
a[j]=temp;
i++;
j--;
}
}
int main()
{
char x[100];
scanf("%s",x);
int n= strlen(x);
for(int i=0; i<n; i++){
for(int j=0; j<n; j++){
if(i+j==n-1 && i==j){
reverse(x,n);
}
if(i==j){
printf("%c",x[i]);
}
else if(i+j==n-1){
printf("%c",x[j]);
}
else{
printf(" ");
}
}
printf("\n");
}
return 0;
}