#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#define r " .,!?:;-(){}"
int main()
{ char text[50], *ptr, *rev;
int f;
do {
 puts("Vvedite stroku");
 gets(text);
 }
while ( text == " " );
ptr = (char *)calloc( 50, sizeof ( char ) );
rev = (char *)calloc( 50, sizeof ( char ) );
ptr = strtok( text,r );
strcpy ( rev, ptr );
strrev( rev );
f = strcmp ( ptr, rev );
if (!f) puts( ptr );
ptr = strtok( NULL ,r );
while ( ptr )  {
 strcpy ( rev, ptr );
 strrev( rev );
 f = strcmp ( ptr, rev );
 if (!f) puts( ptr );
 ptr = strtok( NULL ,r );
 }
}