/******************************************************************************
Online C Compiler.
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Write your code in this editor and press "Run" button to compile and execute it.
*******************************************************************************/
#include <stdio.h>
#include<string.h>
int main()
{
char x[100];
scanf("%s",x);
int n=strlen(x);
for(int i=0; i<=strlen(x); i++){
for(int j=0; j<=strlen(x); j++){
if(i==j){
printf("%c",x[i]);
}
else if (i+j==n-1){
printf("%c",x[i]);
}
else{
printf(" ");
}
}
printf("\n");
}
return 0;
}