a[];main(i){~scanf("%s%c",a+i,a)&&main(*a%5?i+3:!!printf("Why, %s, good sir or madam, this list is %sin fact a palindrome\n",i?"no":"yes","not "-!i,i=a[1]-91^a[4]^a[i-3]^a[i]<<8));}
Note that non-ascii characters in the above source code will be escaped (such as \x9f).