#include "stdio.h"
#include "stdlib.h"
#include "conio.h"
#include "iostream"

void delchar(char* str, char ch)
{
	if(str == 0 || *str == 0) return;

	char* ptr = str;
	while(*ptr != 0) if(*ptr == ch) break; else ptr++;

	while(1)
	{
		char c = *ptr;
		*ptr = ptr[1];
		ptr[1] = c;
		if(*ptr == 0) return; else ptr++;
	}
}

char* _strrev_(const char* str)
{
	char str_[1024];
	str_[strlen(str)] = 0;

	for(int i=strlen(str)-1, j=0;i>=0;i--,j++)
		str_[i] = str[j];
	
	return str_;
}

int main()
{
	char str[1024], strptr[1024];
	printf("Input palindhrom: \n");
	gets(str);

	for(int i=0;i<strlen(str);i++)
	{
		if(str[i] == 0) break;
		if(isupper(str[i]) || isdigit(str[i]))
			delchar(str, str[i]);
	}

	printf((strcmp(_strrev_(str), str) == 0 ? "Yes, this is palindromes:\n %s\n %s" : "No, this is not palindromes:\n %s\n %s"), str, _strrev_(str));

	getch();
}