#include
#define N 80
int fun(char *str)
{
int n=0,i;
char *p=str;
while(*p++)n++;
for(i=0;i
return 1;
}
void main( )
{ char s[N] ;
printf("Enter a string: ") ; gets(s) ;
printf("\n\n") ; puts(s) ;
if( fun(s) ) printf(" YES\n") ;
else printf(" NO\n") ;
}